Association between oral health and oral health-related quality of life in patients before hip and knee endoprosthesis surgery: a cross-sectional study

Table 2 Results of the oral examinations

Parameter	Patients prior to EP (n = 162)
D-T (mv ± sd)	0.36 ± 0.84
Number of remaining teeth (mv ± sd)	18.22 ± 8.57
Number of remaining molars/premolars (mv ± sd)	8.88 ± 5.45
Number of remaining front teeth (mv ± sd)	9.34 ± 3.72
BOP % (mv ± sd)	24.05 ± 16.67
Periodontal treatment need %	84.5%
Dental treatment need %	30.2%
Periodontitis stage %
I	0
II	0.9%
III	41.7%
IV	57.4%
Periodontitis grade %
A	0
B	79.6%
C	20.4%
PISA in mm² (mv ± sd)	292.93 ± 258.59
TMD screening %
Conspicious	21%
Inconspicious	79%
Risk class for EP infection with oral origin
Low	23.2%
Moderate	40.3%
High	36.5%

Mv Mean value; sd Standard deviation; D-T Number of carious teeth; BOP Bleeding on probing; PISA Periodontal inflamed surface area; TMD Temporomandibular disorders, Stage I: interdental CAL max. 1–2 mm, Stage II: interdental CAL max. 3–4 mm, Stage III: interdental CAL max. ≥ 5 mm, periodontitis-related tooth loss ≤ 4 teeth, Stage IV: interdental CAL max. ≥ 5 mm, periodontitis-related tooth loss ≥ 5 teeth, Grade A: bone loss/age < 0.25, Grade B: bone loss/age 0.25–1.0 and/or smoking < cigarettes/day and/or diabetes mellitus with HbA1c < 7.0%, Grade C: bone loss/age < 1.0 and/or smoking ≥ 10 cigarrettes/day and/or diabetes mellitus with HbA1c ≥ 7%, periodontal treatment need: PPD > 4 mm in more than two sextants and/or more than two independently teeth, dental treatment need: D-T > 0

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