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Table 1 Demographics of the patients included in this study

From: Comparison of dentoskeletal and soft tissue changes between tooth-borne and tooth-bone-borne hybrid nonsurgical rapid maxillary expansions in adults: a retrospective observational study

Demographics

T-RME

H-RME

Significance

Subjects (% of total)

21 (50.0)

21 (50.0)

 

Sex (% of group)

   

 Male

8 (38.1)

3 (14.3)

0.159†

 Female

13 (61.9)

18 (85.7)

 

Pretreatment age (years)

21.54 ± 2.59

21.97 ± 6.49

0.178‡

Expansion duration (days)

26.57 ± 13.37

30.95 ± 13.09

0.178‡

Post-expansion duration (months)

2.91 ± 0.59

2.74 ± 0.91

0.186‡

  1. Data are either presented as number (%) or mean ± standard deviation
  2. T-RME, the group who received rapid maxillary expansion (RME) procedure with the conventional tooth-born expander; H-RME, the group underwent RME using the tooth-bone-borne hybrid expander
  3. †The chi-square test was used to analyse the significance of differences between the two groups
  4. ‡The Mann–Whitney U test was used to analyse the significance of differences between the two groups