Skip to main content
Download PDF

Cone-beam computed tomographic assessment of the inclination of the articular eminence in patients with temporomandibular disorders and chewing side preference

BMC Oral Health volume 21, Article number: 396 (2021) Cite this article

Abstract

Background

Chewing side preference (CSP) has been proposed as one etiology of temporomandibular disorders (TMDs) as it can induce the structural changes of the temporomandibular joint. But its association with the inclination of the articular eminence (IAE) is unknown. This study aimed to compare IAE between patients with CSP and without CSP.

Methods

Cone-beam computed tomography images of 90 patients with TMD (mean age of 45.6 years, 69 with CSP, 21 without CSP) and 20 participants without TMD and CSP (mean age of 41.3 years) were measured to compare IAE and depth of the glenoid fossa (DGF)

Results

IAE and DGF showed a positive correlation among all the participants. Compared with the participants without TMD and CSP, the TMD patients without CSP presented a similar IAE but with a significantly higher value of DGF (p < 0.05); in contrast, the TMD patients with CSP presented a significantly greater IAE and DGF (p < 0.05). No bilateral differences in IAE and DGF were observed in all the participants. Except the male patients with CSP had a deeper fossa than did the female, no differences in IAE and DGF according to gender were observed.

Conclusions

TMD patients with CSP seem to have a deep glenoid fossa with steep eminence which might be considered one characteristic imaging feature.

Peer Review reports

Background

The glenoid fossa of the temporal bone is the upper part of the temporomandibular joint (TMJ), encompassing the joint disc and condyle with the attached joint capsules and ligaments. The posterior surface of the articular eminence bears the function load, and its inclination determines the path of condylar movement as well as the degree of rotation of the joint disc over the condyle during mouth movement [1].

Numerous studies have demonstrated that temporomandibular disorders (TMDs) are closely related to the morphologic changes of the TMJs [2,3,4,5,6]. As one indispensable part, the glenoid fossa undergoes persistent morphologic remodeling to better match with the joint disc and condyle due to the alteration of functional load, often associated with chewing habit, gender, food texture, and age [7].

Many studies have investigated the relationship between the morphology of the glenoid fossa, especially the inclination of the articular eminence (IAE), and TMDs. However, the results are contradictory. While some research revealed a steeper IAE in the TMD patients and attributed it to the development of TMDs [1, 8,9,10], other studies failed to support the relationship between the changes of IAE and TMDs [11,12,13,14].

Chewing side preference (CSP) or unilateral chewing, observed in 45–98% of the population [15], have been viewed as one potential contributor of TMDs [16,17,18]. Firstly, people with CSP have a higher prevalence of TMDs and also a great majority of TMD patients show CSP [16, 17, 19]. Secondly, the preferred chewing side often is the symptomatic side of the joints in TMD patients [20]. In addition, CSP could result into excessive load on the TMJ, leading to the anatomic and structural changes of TMJ, including cartilage [21], the glenoid fossa [22] and the condyle [23].

Great diversity in the methods and composition of participants may partially explain the controversies regarding IAE and TMDs. However, the presence or absence of CSP among the participants in previous studies was not mentioned. Considering the relationship between CSP and TMD, the remodeling of the TMJs during the development of TMDs, and the role of IAE played in the functional movement of the mandible, we speculate that CSP might be associated with the changes of IAE as one of the contributors of TMDs. Therefore, we enrolled TMD patients with CSP and without CSP to compare the imaging differences in the morphology of the fossa, aiming to explore the relationship between CSP and TMDs and provide another perspective to compare pervious imaging studies about IAE and TMDs.

Methods

Participants

This study was approved by the medical ethics committee of Chinese PLA Genera Hospital. A total of 90 patients who sought treatment of TMD in the department of stomatology at Chinese People’s Liberation Army General Hospital were randomly selected, and a written informed consent was obtained from each participant. The diagnose of TMD was made according to DC/TMD [19], the symptoms included unilateral joint pain, joint noise (clicking or crepitus) for more than 30 days. The exclusion criteria included masticatory muscle disorders, severe malocclusion, parafunction, traumatic injuries, congenital deformity, and a history of TMD treatment. Patients with systemic diseases that may affect the masticatory system, including diabetes, rheumatic disorders and gout, were also excluded.

The chewing preference was determined by self-report and a chewing gum test. A piece of chewing gum was placed on the center of the tongue dorsum; the direction towards which the gum was moved by the tongue in the first cycle of mastication was recorded as the preferred chewing side [23, 24]. Among 90 patients, 69 presented both TMD symptoms and CSP (the TC group), 21 presented only TMD symptoms (the T group). Other 20 asymptomatic volunteers without CSP were enrolled into the control group. All the participants were adult with a mean age of 44.8 years (Table 1).

Table 1 The composition by the age, gender and CSP of all the participants
Full size table

Imaging procedures and measurements

The image-acquiring and measurements were same as the procedures reported in our previous study [23]. CBCT scanning with a NewTom 3G flat panel-based Cone-beam computed tomography (CBCT) machine was performed, each participant was in a standard supine position with the mandible in a maximum intercuspal position and the Frankfort plane perpendicular to the horizontal plane. The scanning parameters were as follows, scanning time: 36 s with maximum output: 110 kV and 15 mAs, voxel size: 0.16 mm, typical exposure time: 5.4 s. FOV size:15 × 12 cm, voxel resolution: 0.25 mm, slices thickness: 0.5 mm. The central sagittal slice was chosen to measure IAE and the depth of the glenoid fossa (DGF).

IAE was measured as the angle between two reference lines: the line through the highest point of glenoid fossa and the lowest point of articular eminence was set as α-line, and β-line was set as one through the midpoint of external ear foramen and the lowest point of articular eminence. DGF was the perpendicular distance from the highest point of joint fossa to β-line (Fig. 1).

Fig. 1
figure 1

The inclination of articular eminence (IAE) and the depth of glenoid fossa (DGF). IAE: the angle between α and β line. DGF: the perpendicular distance between the highest point of the fossa and α-line

Full size image

Statistical analysis

The distribution of genders and CSP were analyzed by Chi-squared test. The intergroup differences in IAE and DGF were compared with the analysis of variance (ANOVA). Intragroup differences in IAE and DGF according to side and gender were compared with paired t-test. Correlation analysis was performed to determine the relationship between IAE and DGF. All the analyses were performed using SPSS 16.0 (SPSS Inc., Chicago, IL, USA). The difference was considered significant when p ≤ 05 in all the analyses.

Results

The demographic characteristics of participants

Table 1 shows the demographic characteristics and the presence of CSP of all the participants. Twenty asymptomatic participants without CSP (8 males and 12 females) were included in the control group with a mean age of 41.3 years. The T group comprised 21 TMD patients without CSP (mean age of 46.5 years), and the TC group consisted of 69 TMD patients with CSP (mean age of 45.3 years), 32 with left CSP and 37 with right CSP. The Chi-squared test showed a nonsignificant difference in the gender distribution between 3 groups (x2 = 1.415, p = 0.176); in the TC group, the distribution of left CSP and right CSP according to genders also showed no significant differences (x2 = 0.728, p = 0.276).

The symptomatic side was in accordance with the preferred chewing side in 69.6% of patients (48/69) in the TC group. There was a significant concordance between the preferred chewing side and the symptomatic side (the Pearson x2 = 9.59, p = 0.002; k = 0.37; p = 0.002).

The intergroup comparison of IAE and DGF

ANOVA results showed a significant difference in IAE between 3 groups (p < 0.05). The patients with CSP had a significantly greater value of IAE than those in the T and control groups (p < 0.05). But there was no significant difference between the T and control groups (p > 0.05; Fig. 2).

Fig. 2
figure 2

The comparisons of IAE between groups

Full size image

The DGF also exhibited a significant difference between groups. The TMD patients in the TC and T group had a deeper fossa compared with that in the asymptomatic participants (p < 0.05). No significant difference between the T and TC groups was observed (p > 0.05; Fig. 3).

Fig. 3
figure 3

The comparisons of DGF between groups

Full size image

Figure 4 shows the ratio of IAE/DGF in the all the participants. The participants in the TC group and the control group exhibited similar ratio without significant difference (p > 0.05), but the ratio in the T group was significantly lower than that in other groups (p < 0.05).

Fig. 4
figure 4

The ratio of IAE to DGF among each group

Full size image

Intragroup analysis

Neither IAE nor DGF showed significant differences bilaterally within the control and T groups (p > 0.05). The preferred side of joints in the TC group also presented similar values of IAE and DGF as the unpreferred side (p > 0.05; Table 2).

Table 2 Bilateral comparisons of IAE and DGF within each group
Full size table

The comparison of IAE between genders within each group showed no significant differences (p > 0.05); except that the male TMD patients with CSP presented significantly greater DGF than the female counterparts (p < 0.05), no differences in DGF between genders were observed within other groups (p > 0.05; Table 3).

Table 3 The differences in IAE and DGF between genders within each group
Full size table

Correlation analysis

With all the participants included or within each group, a strong positive correlation was observed between IAE and DGF (p < 0.05). The highest r value of 0.559 was observed in the control group, and the TC presented the second highest r value of 0.483 (Table 4).

Table 4 The pearson correlation between IAE and DGF
Full size table

Discussion

The articular eminence is exposed to functional load during chewing, and its shape is in a constant remodeling to match the movement of the condyle and joint disc. Therefore, the articular inclination reflecting the condylar path might also be influenced by the changing jaw movement and functional load. In our previous work, we observed the eminence in the preferred side was steeper than that in the unpreferred side among the healthy subjects with CSP. But the presentation of IAE in TMD patients with CSP is unknown [23]. In the present study, we found a steep eminence and deep fossa in the TMD patients with CSP. In contrast, the TMD patients without CSP showed a deep fossa without steep IAE. This result indicates that CSP has an influence on IAE among patients with TMD. In addition, no bilateral differences in IAE were observed in all the participants. To our best knowledge, similar results have not been reported.

Santana et al. [25] observed that TMD patients with CSP presented a steeper condylar path angle in the symptomatic side of joints compared with that in the contralateral side. They considered CSP as one etiology of TMD and proposed a new term, ‘‘habitual chewing side syndrome’’, to replace the nonspecific symptom-based ‘‘temporomandibular joint disorders’’. Although condylar path does not equal to IAE, but they are positively correlated with each other [26]. Therefore, our findings provided imaging evidence supporting the phenomenon observed by Santana et al., and this deep fossa with steep eminence might be viewed as one imaging feature for TMD patients with CSP. We also observed that IAE was positively correlated with DGF, which is in line with previous reports [1, 9].

In the present study, we did not find TMD patients without CSP had a steeper eminence compared with the subjects in the control group. This is in agreement with the results of Ren et al. [11], Pullinger et al. [12] and Imanimoghaddam et al. [14], but contradictory to Al-Rawi et al. [1], Sato et al. [8] and Paknahad et al. [10]. These studies showed a steeper eminence in the TMD patients than in the heathy individuals. In contrast, Sümbüllü et al. [13] found IAE in TMD patients was lower than it was in the healthy subjects.

Although many factors might be related to the controversies above, including gender, TMD severity, type of TMDs, imaging modality and measuring methods, no definitive conclusion could be made. For instance, Al-Rawi et al. [1] reported that only the male TMD patients had a greater IAE, female patients had no such a presentation. But other studies failed to observe similar result [10, 13, 27, 28]. In our study, the TC group included more female patients, which might cause bias. But the comparison between genders within each group showed no differences in IAE. Thus, gender might not be a strong factor influencing IAE.

Age might also be a factor influencing the results. The adults have a greater IAE compared with children [28]. However, the articular eminence is relatively stable without significant changes due to aging after it achieves complete development by the age of 20 to 30 years [29]. In our study, all the enrolled participants were adults and showed similar age distribution between groups, eliminating the possible bias caused by age.

Variations in TMD type have been related to different changes of TMJ morphology. Sülün et al. [9] and Rabelo et al. [30] reported that only patients with disc displacement with reduction (DDWR) presented greater IAE, which was not observed in the event of disc displacement without reduction. However, Poluha et al. [31] failed to observe the difference in IAE between the normal joints and joints with DDWR in their MRI study. Ren et al. [11] found a greater IAE in the normal joints rather than the joints with disc displacement, thus, they did not support a steep eminence as one predisposing factor for disc displacement. In addition, some studies provided no clear information about the types of TMDs, causing more difficulties in comparing the various results [1, 12,13,14].

Measuring methods could directly influence the results. Two reference lines must be defined to measure IAE in imaging study. One is the line depicting the posterior surface of eminence, most studies adopted “best-fit line” [1, 9, 11, 12, 31] or “top-roof line” [10, 30, 32]. The other one is usually the line parallel to Frankfort plane, but other lines have also been reported [8, 10, 12]. Different reference lines directly affect the value of IAE and the final results. Sato et al. [8] reported a greater IAE in joints with DDWR when measuring was taken with the “best-fit line” method, but with the “top-roof line” method, no difference was observed.

Regarding DGF, we found TMD patients with or without CSP presented a greater value than did the control. Only the male patients with CSP showed a deeper fossa than the female counterparts, other participants showed no difference in DGF between genders. Rabelo et al. [30] compared the DGF between TMD patients with different types of dis displacement and found no differences in a MRI study, but box-shaped eminences presented greater DGF. Paknahad et al. observed that only the male TMD patients had a deeper DGF than female, the normal population had no such a difference between genders [10]. These findings indicate that impacts of gender on IAE or DGF are conditional and related to other factors, including the presence of TMDs and chewing habit.

The articular eminence forms the anterior limits for the movement of condyle and disc, thus, a deep glenoid fossa with a steep eminence means that both the condyle and disc have to move forward and downward further than the movement in a flat and shallow fossa during mouth opening. Therefore, the disc has a greater chance of being captured during mouth movement, predisposing individuals to disc displacement [1, 26, 30]. In this regard, our findings support previous research that showed a positive relation between CSP and internal derangement of TMJ [33,34,35].

As for why the TMD patients with CSP had such a deep fossa and greater IAE, we speculate that the change of condyle position and increased load are the direct factors. Because the working side condyle is in a posterior and superior position during normal chewing movement [36, 37]; the individuals with CSP would constantly repeat this position in the preferred side of joints rather than alternating with the balancing side, causing excessive load and the following adaptive changes of the joints [36, 38]. The osseous remodeling secondary to disc displacement might also be another possibility. However, only at an advanced stage-disc displacement without reduction, could obvious osseous changes present [39,40,41], which might partially explain why the patients without CSP showed similar IAE as healthy individuals if most of our patients were with disc displacement with reduction.

The limitation of the present study is we could not give a definitive assertion whether a steep eminence with a deep fossa is the reason or merely a consequence of TMDs by the imaging results. Considering multiple factors associated with TMDs, we could not rule out the possibility that differences in the morphology of the glenoid fossa between groups were also related to other factors besides CSP, like parafunction, types and severity of TMD, or occlusion. Although it is difficult to control multiple factors in a clinical study with a large sample size, more homogeneous participants and uniform measuring method should be taken into the consideration when designing the study to evaluate the relationship between a specific factor and TMDs. Within the limits of the present study, a deep glenoid fossa with steep eminence might be taken as one characteristic imaging presentation for the TMD patients with CSP. CSP is a predisposing factor for the development of TMDs.

Conclusions

Within the limits of the present study, a deep glenoid fossa with steep eminence might be taken as one characteristic imaging presentation for the TMD patients with CSP. CSP is a predisposing factor for the development of TMDs.

Availability of data and materials

The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.

Abbreviations

CSP:

Chewing side preference

IAE:

Inclination of the articular eminence

TMDs:

Temporomandibular disorders

DGF:

Depth of the glenoid fossa

TMJ:

Temporomandibular joint

CBCT:

Cone-beam computed tomography

ANOVA:

Analysis of variance

DDWR:

Disc displacement with reduction

References

  1. Al-Rawi NH, Uthman AT, Sodeify SM. Spatial analysis of mandibular condyles in patients with temporomandibular disorders and normal controls using cone beam computed tomography. Eur J Dent. 2017;11:99–105.

    PubMed  PubMed Central  Article  Google Scholar 

  2. Tanaka E, Detamore MS, Mercuri LG. Degenerative disorders of the temporomandibular joint: etiology, diagnosis, and treatment. J Dent Res. 2008;87:296–307.

    PubMed  Article  Google Scholar 

  3. Peroz I, Seidel A, Griethe M, Lemke A-J. MRI of the TMJ: morphometric comparison of asymptomatic volunteers and symptomatic patients. Quintessence Int Berl Ger. 1985;2011(42):659–67.

    Google Scholar 

  4. Matsumoto K, Kameoka S, Amemiya T, et al. Discrepancy of coronal morphology between mandibular condyle and fossa is related to pathogenesis of anterior disk displacement of the temporomandibular joint. Oral Surg Oral Med Oral Pathol Oral Radiol. 2013;116:626–32.

    PubMed  Article  Google Scholar 

  5. Bedran LM, dos Santos AASMD. Changes in temporomandibular joint anatomy, changes in condylar translation, and their relationship with disc displacement: magnetic resonance imaging study. Radiol Bras. 2019;52:85–91.

    PubMed  PubMed Central  Article  Google Scholar 

  6. Choudhary A, Ahuja US, Rathore A, Puri N, Dhillon M, Budakoti A. Association of temporomandibular joint morphology in patients with and without temporomandibular joint dysfunction: a cone-beam computed tomography based study. Dent Res J. 2020;17:338–46.

    Article  Google Scholar 

  7. İlgüy D, İlgüy M, Fişekçioğlu E, Dölekoğlu S, Ersan N. Articular eminence inclination, height, and condyle morphology on cone beam computed tomography. Sci World J. 2014;2014:1–6.

    Article  Google Scholar 

  8. Sato S, Kawamura H, Motegi K, Takahashi K. Morphology of the mandibular fossa and the articular eminence in temporomandibular joints with anterior disk displacement. Int J Oral Maxillofac Surg. 1996;25:236–8.

    PubMed  Article  Google Scholar 

  9. Sülün T, Cemgil T, Duc JM, Rammelsberg P, Jäger L, Gernet W. Morphology of the mandibular fossa and inclination of the articular eminence in patients with internal derangement and in symptom-free volunteers. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001;92:98–107.

    PubMed  Article  Google Scholar 

  10. Paknahad M, Shahidi S, Akhlaghian M, Abolvardi M. Is Mandibular fossa morphology and articular eminence inclination associated with temporomandibular dysfunction? J Dent Shiraz Iran. 2016;17:134–41.

    Google Scholar 

  11. Ren YF, Isberg A, Westesson PL. Steepness of the articular eminence in the temporomandibular joint. Tomographic comparison between asymptomatic volunteers with normal disk position and patients with disk displacement. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995;80:258–66.

    PubMed  Article  Google Scholar 

  12. Pullinger AG, Seligman DA, John MT, Harkins S. Multifactorial modeling of temporomandibular anatomic and orthopedic relationships in normal versus undifferentiated disk displacement joints. J Prosthet Dent. 2002;87:289–97.

    PubMed  Article  Google Scholar 

  13. Sümbüllü MA, Cağlayan F, Akgül HM, Yilmaz AB. Radiological examination of the articular eminence morphology using cone beam CT. Dento Maxillo Facial Radiol. 2012;41:234–40.

    Article  Google Scholar 

  14. Imanimoghaddam M, Madani AS, Mahdavi P, Bagherpour A, Darijani M, Ebrahimnejad H. Evaluation of condylar positions in patients with temporomandibular disorders: A cone-beam computed tomographic study. Imaging Sci Dent. 2016;46:127–31.

    PubMed  PubMed Central  Article  Google Scholar 

  15. Haralur SB, Majeed MI, Chaturvedi S, Alqahtani NM, Alfarsi M. Association between preferred chewing side and dynamic occlusal parameters. J Int Med Res. 2019;47:1908–15.

    PubMed  PubMed Central  Article  Google Scholar 

  16. Casanova-Rosado JF, Medina-Solís CE, Vallejos-Sánchez AA, Casanova-Rosado AJ, Hernández-Prado B, Ávila-Burgos L. Prevalence and associated factors for temporomandibular disorders in a group of Mexican adolescents and youth adults. Clin Oral Investig. 2006;10:42–9.

    PubMed  Article  Google Scholar 

  17. Yu Q, Liu Y, Chen X, et al. Prevalence and associated factors for temporomandibular disorders in Chinese civilian pilots. Int Arch Occup Environ Health. 2015;88:905–11.

    PubMed  Article  Google Scholar 

  18. Rikmasari R, Yubiliana G, Maulina T. Risk factors of orofacial pain: a population-based study in West Java Province, Indonesia. Open Dent J. 2017;11:710–7.

    PubMed  PubMed Central  Article  Google Scholar 

  19. Yalçın Yeler D, Yılmaz N, Koraltan M, Aydın E. A survey on the potential relationships between TMD, possible sleep bruxism, unilateral chewing, and occlusal factors in Turkish university students. CRANIO. 2017;35:308–14.

    PubMed  Article  Google Scholar 

  20. López-Cedrún J, Santana-Mora U, Pombo M, et al. Jaw biodynamic data for 24 patients with chronic unilateral temporomandibular disorder. Sci Data. 2017;4:170168.

    PubMed  PubMed Central  Article  Google Scholar 

  21. Huang Q, Opstelten D, Samman N, Tideman H. Experimentally induced unilateral tooth loss: histochemical studies of the temporomandibular joint. J Dent Res. 2002;81:209–13.

    PubMed  Article  Google Scholar 

  22. Zhang F, Wang J, Li X. Effect of unilateral mastication on the remodeling of the glenoid fossae in Wistar rats. West China J Stomatol. 2003;21:155–7.

    Google Scholar 

  23. Jiang H, Li C, Wang Z, et al. Assessment of osseous morphology of temporomandibular joint in asymptomatic participants with chewing-side preference. J Oral Rehabil. 2015;42:105–12.

    PubMed  Article  Google Scholar 

  24. Kazazoglu E, Heath MR, Müller F. A simple test for determination of the preferred chewing side. J Oral Rehabil. 2007;21:723–4.

    Article  Google Scholar 

  25. Santana-Mora U, López-Cedrún J, Mora MJ, Otero XL, Santana-Penín U. Temporomandibular Disorders: The Habitual Chewing Side Syndrome. PLoS ONE. 2013;8:e59980.

    PubMed  PubMed Central  Article  Google Scholar 

  26. Isberg A, Westesson PL. Steepness of articular eminence and movement of the condyle and disk in asymptomatic temporomandibular joints. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998;86:152–7.

    PubMed  Article  Google Scholar 

  27. Wish-Baratz S, Hershkovitz I, Arensburg B, Latimer B, Jellema LM. Size and location of the human temporomandibular joint. Am J Phys Anthropol. 1996;101:387–400.

    PubMed  Article  Google Scholar 

  28. Meng F, Liu Y, Hu K, Zhao Y, Kong L, Zhou S. A comparative study of the skeletal morphology of the temporo-mandibular joint of children and adults. J Postgrad Med. 2008;54:191–4.

    PubMed  Article  Google Scholar 

  29. Katsavrias EG, Dibbets JM. The growth of articular eminence height during craniofacial growth period. Cranio J Craniomandib Pract. 2001;19:13–20.

    Google Scholar 

  30. Rabelo KA, Sousa Melo SL, Torres MGG, Campos PSF, Bento PM, de Melo DP. Condyle excursion angle, articular eminence inclination, and temporomandibular joint morphologic relations with disc displacement. J Oral Maxillofac Surg Off J Am Assoc Oral Maxillofac Surg. 2017;75(938):e1-938.e10.

    Google Scholar 

  31. Poluha RL, Cunha CO, Bonjardim LR, Conti PCR. Temporomandibular joint morphology does not influence the presence of arthralgia in patients with disk displacement with reduction: a magnetic resonance imaging-based study. Oral Surg Oral Med Oral Pathol Oral Radiol. 2020;129:149–57.

    PubMed  Article  Google Scholar 

  32. Shahidi S, Vojdani M, Paknahad M. Correlation between articular eminence steepness measured with cone-beam computed tomography and clinical dysfunction index in patients with temporomandibular joint dysfunction. Oral Surg Oral Med Oral Pathol Oral Radiol. 2013;116:91–7.

    PubMed  Article  Google Scholar 

  33. Incesu L, Taşkaya-Yilmaz N, Oğütcen-Toller M, Uzun E. Relationship of condylar position to disc position and morphology. Eur J Radiol. 2004;51:269–73.

    PubMed  Article  Google Scholar 

  34. Diernberger S, Bernhardt O, Schwahn C, Kordass B. Self-reported chewing side preference and its associations with occlusal, temporomandibular and prosthodontic factors: results from the population-based Study of Health in Pomerania (SHIP-0). J Oral Rehabil. 2008;35:613–20.

    PubMed  Article  Google Scholar 

  35. Ratnasari A, Hasegawa K, Oki K, et al. Manifestation of preferred chewing side for hard food on TMJ disc displacement side: preferred chewing side and TMJ Disc Displacement. J Oral Rehabil. 2011;38:12–7.

    PubMed  Article  Google Scholar 

  36. Miyawaki S, Tanimoto Y, Kawakami T, Sugimura M, Takano-Yamamoto T. Motion of the human mandibular condyle during mastication. J Dent Res. 2001;80:437–42.

    PubMed  Article  Google Scholar 

  37. Tomonari H, Kwon S, Kuninori T, Miyawaki S. Differences between the chewing and non-chewing sides of the mandibular first molars and condyles in the closing phase during chewing in normal subjects. Arch Oral Biol. 2017;81:198–205.

    PubMed  Article  Google Scholar 

  38. Martinez-Gomis J, Lujan-Climent M, Palau S, Bizar J, Salsench J, Peraire M. Relationship between chewing side preference and handedness and lateral asymmetry of peripheral factors. Arch Oral Biol. 2009;54:101–7.

    PubMed  Article  Google Scholar 

  39. Ren YF, Isberg A, Westesson PL. Condyle position in the temporomandibular joint. Comparison between asymptomatic volunteers with normal disk position and patients with disk displacement. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995;80:101–7.

    PubMed  Article  Google Scholar 

  40. Major PW, Kinniburgh RD, Nebbe B, Prasad NG, Glover KE. Tomographic assessment of temporomandibular joint osseous articular surface contour and spatial relationships associated with disc displacement and disc length. Am J Orthod Dentofac Orthop Off Publ Am Assoc Orthod Its Const Soc Am Board Orthod. 2002;121:152–61.

    Google Scholar 

  41. Liu Y-S, Yap AU-J, Lei J, Liu M-Q, Fu K-Y. Association between hypoplastic condyles and temporomandibular joint disc displacements: a cone beam computed tomography and magnetic resonance imaging metrical analysis. Int J Oral Maxillofac Surg. 2020;49:932–9.

    PubMed  Article  Google Scholar 

  42. Wu C-K, Hsu J-T, Shen Y-W, Chen J-H, Shen W-C, Fuh L-J. Assessments of inclinations of the mandibular fossa by computed tomography in an Asian population. Clin Oral Investig. 2012;16:443–50.

    PubMed  Article  Google Scholar 

Download references

Acknowledgements

Not applicable.

Funding

This work was supported by the National Natural Science Foundation of China (81970957), Medical big data and artificial intelligence research and development Project of PLA General Hospital (2019MBD-013).

Author information

Author notes

  1. Junli Ma and Jiazhu Wang have contributed equally to this work and should be considered as co-first author

Authors and Affiliations

  1. Department of Stomatology, General Hospital of Southern Theater of PLA, Guangzhou, People’s Republic of China

    Junli Ma

  2. Department of Stomatology, Chinese PLA General Hospital, No. 28 FuXing Road, Beijing, 100853, People’s Republic of China

    Jiazhu Wang, Dongzong Huang, Zhaowu Wang, Min Hu, Hongchen Liu & Hua Jiang

Authors
  1. Junli Ma
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jiazhu Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Dongzong Huang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Zhaowu Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Min Hu
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Hongchen Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Hua Jiang
    View author publications

    You can also search for this author in PubMed Google Scholar

Contributions

JM analyzed and interpreted the patient data and drafted the manuscript. JW performed the clinical investigations and the data collection and was also one contributor in writing the manuscript. DH performed the clinical investigations. ZW performed the imaging acquiring. MH and HL took part in the design of experiment and manuscript preparation. HJ was responsible for the study design, manuscript revising, and financial support. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Hua Jiang.

Ethics declarations

Ethics approval and consent to participate

This study was approved by the medical ethics committee of Chinese PLA Genera Hospital (S2020-327-01). All procedures performed in the study were in accordance with the ethical standards of the medical ethics committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards, and a written informed consent was obtained from each participant.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Ma, J., Wang, J., Huang, D. et al. Cone-beam computed tomographic assessment of the inclination of the articular eminence in patients with temporomandibular disorders and chewing side preference. BMC Oral Health 21, 396 (2021). https://doi.org/10.1186/s12903-021-01760-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1186/s12903-021-01760-4

Keywords

  • Cone-beam computed tomography
  • Chewing-side preference
  • Temporomandibular joint
  • Glenoid fossa
  • Articular eminence inclination
  • Temporomandibular disorders

BMC Oral Health

ISSN: 1472-6831

Contact us