Busto RBP, Flores OJC, Fayad HS

Language: Spanish
References: 10
Page: 101-105
PDF size: 308.86 Kb.

ABSTRACT

Introduction: Molars with fused roots have less root attachment area compared with teeth with divergent roots and therefore more susceptible to be mobile as well as an unfavorable crown-root ratio. The purpose of this study is to determine the prevalence and distribution of molars with fused roots. Materials and methods: Radiographic series from 1,063 patients of the postgraduate program at the Universidad Intercontinental were evaluated to determine which molars had root fusion. Results: The percentage of all molars with fused roots was 46% (3,086) from a total of 6,724 molars studied. Root fusion was found more frequently in maxillary molars (58%) than mandibular molars (33%). Root fusion was less common in 1^st molars, in both jaws. It occurred in almost equal numbers in corresponding molars of opposite sides, approaching bilateral symmetry. Conclusion: Data obtained suggests that root fusion is a common finding. Root morphology is a factor to be considered during the diagnosis, prognosis and treatment plan as fused or tapered roots in periodontally affected molars may manifest mobility and compromise crown root ratio. The number, length, shape and spread of molar roots affect their anchorage in the jaw bone to a significant degree and are important factors in determining prognosis of a tooth.

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