Interproximal bone loss at contra-lateral teeth with and without root canal filling in periodontitis patients.
OBJECTIVE
The purpose of this study was to test the hypothesis that teeth that are adequately endodontically treated develop more periodontal bone loss than their contra-lateral counterpart without root canal filling (RCF) in relation to the restoration margin (RM) in periodontitis patients.


METHODS
In 53 periodontitis patients (26 females; 34-73 years of age), 66 pairs of radiographs were sampled. Each pair of radiographs depicted one pair of contra-lateral teeth: one with and one without RCF. All radiographs were digitized. Using a PC program the linear distances cemento-enamel junction (CEJ) or RM to the alveolar crest (AC) and CEJ/RM to bony defect (BD) were measured at the site of most pronounced bone loss. Comparisons were made according to RCF, RM, site (mesial/distal), jaw and tooth type (anterior/posterior).


RESULTS
The study showed statistically significant differences for the distance CEJ/RM-BD only for tooth type (anterior: 6.17 ± 3.01 mm, posterior: 5.03 ± 2.59 mm, p=0.044; without RCF: 5.14 ± 2.82 mm, RCF: 5.57 ± 2.70 mm, p=0.159; without RM: 5.67 ± 2.98 mm, RM: 5.16 ± 2.61 mm; p=0.322; mesial: 5.62 ± 2.98 mm, distal: 5.06 ± 2.24 mm; p=0.238; maxilla: 5.55 ± 3.04 mm, mandible: 5.20 ± 2.52 mm; p=0.486).


CONCLUSIONS
Teeth with endodontic treatment failed to exhibit more bone loss than endodontically untreated teeth.
Department of Periodontology, Center for Dental, Oral, and Maxillofacial Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.
Dana
D
Adyani-Fard
Ti-Sun
TS
Kim
Peter
P
Eickholz
D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000209:etiology*; D000539:Alveolar Process / Q000000981:diagnostic imaging; D001641:Bicuspid / Q000000981:diagnostic imaging; D003481:Cuspid / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007180:Incisor / Q000000981:diagnostic imaging; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging; D008437:Maxilla / Q000000981:diagnostic imaging; D008875:Middle Aged; D008963:Molar / Q000000981:diagnostic imaging; D010513:Periodontal Ligament / Q000000981:diagnostic imaging; D010518:Periodontitis / Q000150:complications*; D016300:Radiography, Bitewing; D019252:Radiography, Dental, Digital; D012387:Root Canal Filling Materials; D012390:Root Canal Therapy / Q000009:adverse effects; D012907:Smoking; D019237:Tooth Cervix / Q000000981:diagnostic imaging
D012387:Root Canal Filling Materials