Conclusions:?The location of the root fracture had a strong significant effect on tooth survival (P?=?0.0001). The 10?year tooth survival of apical root fractures was 89% [95% confidence interval (CI), 78–99%], of mid?root fractures 78% (CI, 64–92%), of cervical?mid?root fractures 67% (CI, 50–85%), and of cervical fractures 33% (CI, 17–49%). The fracture?healing type offered further prognostic information. No tooth loss was observed in teeth with hard tissue fracture healing regardless of the position of the fracture. For teeth with interposition of connective tissue, the location of the fracture had a significant influence on tooth loss (P?=?0.0001). For teeth with connective tissue healing, the estimated 8?year survival of apical, mid?root, and cervical?…
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