Ｃhan et al. (1999)
宮下裕志（JDPIC研究会）
要約：
|
Oral Surg Oral
Med Oral Pathol Oral Radiol
Endod 1999 Apr;87(4):504-7 |
Vertical root fracture in endodontically versus nonendodontically
treated teeth: a survey of 315 cases in Chinese patients.
Chan CP, Lin CP, Tseng SC, Jeng JH.
Dental Department,
OBJECTIVE: The purpose of this study was to compare endodontically
versus nonendodontically treated teeth with respect
to clinical features, including patient age and gender and tooth types of
vertical root fractures. STUDY DESIGN: A total of 315 consecutive cases of
vertical root fracture occurring in 274 Chinese patients during a 1 3-year
period were reviewed. Age and gender, as well as tooth type and root
distribution of vertical root fractures, were presented and compared in endodontically versus nonendodontically
treated teeth. RESULTS: Most patients (87%) had 1 fractured tooth; the others
had 2 or 3 fractured teeth. Of all vertical root fractures, 40% occurred in nonendodontically treated teeth. In comparison with those
in endodontically treated teeth, vertical root
fractures in nonendodontically treated teeth tended
to occur in patients with a higher mean age (55 years vs. 51 years) and were
more frequent in male patients (78% vs. 58%). Vertical root fractures occurred
in nonendodontically treated teeth more often in
molars (84% vs. 53%), less often in premolars (16% vs. 33%), and seldom in anteriors (1 tooth vs. 27 teeth). CONCLUSIONS: Vertical
root fractures in nonendodontically treated teeth are
not uncommon and comprise a large proportion of such fractures in Chinese patients.
Differences between endodontically and nonendodontically treated teeth in patient age and gender,
as well as in tooth types of vertical root fractures, were demonstrated.
結果：
キーワード
根管治療、歯根破折、疫学
Copyrights(c) 2001 Hiroshi Miyashita DDS.