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Table 1 Characteristics, oral examinations, and dental clinical diagnosis among the subjects

From: Association between Helicobacter pylori infection and dental pulp reservoirs in Japanese adults

 MalesFemalesTotal
n = 87n = 105n = 192
Clinical characteristics and oral hygiene habits
 Age average ± SD59.5 ± 18.957.9 ± 20.258.6 ± 18.8
 Age - grades
  ~ 4926 (30%)34 (32%)60 (31%)
  50~597 (8%)14 (13%)21 (11%)
  60~6918 (21%)17 (16%)35 (18%)
  70~36 (41%)40 (38%)76 (40%)
 Body Mass Index (kg/m2) ± SD23.4 ± 4.222.6 ± 4.123.1 ± 4.0
 Smoking28 (32%)22 (21%)50 (26%)
 Previous eradication therapy of H. pylori13 (15%)8 (8%)21 (11%)
 Frequency of teeth brushing (per day) ± SD2.0 ± 0.52.2 ± 0.82.1 ± 0.5
 Habitual use of interdental cleaning tools +41 (47%)47 (45%)88 (46%)
 Habitual use of tongue scraper +6 (7%)8 (8%)14 (7%)
Oral examinations
 Number of remaining teeth ± SD20.8 ± 7.020.4 ± 7.520.4 ± 6.8
 Dental caries +53 (61%)57 (54%)110 (57%)
 Community Periodontal Index code 358 (67%)78 (74%)136 (71%)
Dental treatmentDental clinical diagnosis   
Pulp treatmentSevere dental caries10 (11%)15 (14%)25 (13%)
Tooth extractionSevere dental caries with periodontitis20 (23%)37 (35%)57 (30%)
 Pericoronitis32 (36%)19 (18%)51 (26%)
 Severe periodontitis18 (21%)23 (22%)41 (21%)
 Severe dental caries2 (2%)9 (9%)11 (6%)
 Tooth fracture5 (6%)2 (2%)7 (4%)
  1. Values are presented as ‘mean ± SD