Treatment outcome in endodontics - The Toronto Study. Phase II: Initial treatment

被引:122
作者
Farzaneh, M [1 ]
Abitbol, S [1 ]
Lawrence, HP [1 ]
Friedman, S [1 ]
机构
[1] Univ Toronto, Fac Dent, Discipline Community Dent, Toronto, ON M5G 1G6, Canada
关键词
D O I
10.1097/00004770-200405000-00002
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The 4- to 6-yr outcome of initial (first-time) endodontic treatment was assessed for Phase 11 of the "Toronto Study." In total, 442 teeth were treated by using flared preparation and vertical compaction of warm gutta-percha or step-back preparation and lateral compaction. With 126 teeth excluded (discontinuers: deceased and relocated patients), 163 dropouts, and 31 extracted, 122 (48% recall were examined for outcome: "healed" (no apical periodontitis [AP], signs, symptoms) or "diseased" (AP, signs, or symptoms). Phase II was analyzed separately and combined with Phase I (n = 242), using Chi-square and Fisher's exact tests (p less than or equal to5 0.05). The healed rate (combined sample, 85%) differed significantly for preoperative AP (absent, 93%; present, 79%), treatment technique (flared preparation and vertical compaction, 90%; step-back preparation and lateral compaction, 80%), gender (females, 90%; males, 79%), number of roots (1-92%; greater than or equal to2-81%), and root-filling length (adequate, 87%; inadequate, 77%). Logistic regression revealed increased risk of disease for preoperative AP (odds ratio = 3.3) and technique (odds ratio = 2.3). This study confirmed AP and highlighted treatment technique as the main predictors of outcome in initial treatment.
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页码:302 / 309
页数:8
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