Morphometric study of the root anatomy in furcation area of mandibular first molars

Abstract

Furcation involvement in periodontal disease has been a challenge for the dentist.ObjectiveThe aim of this study was to investigate root dimensions in the furcation area of 233 mandibular first molars. Material and MethodsDigital photomicrographs were used to obtain the following measurements on the buccal and lingual surfaces of each tooth: root trunk height (RT), horizontal interadicular distance obtained 1 mm (D1) and 2 mm (D2) below the fornix and interadicular angle (IA). ResultsMean± standard deviation of buccal and lingual furcation measurements were, respectively, 1.37±0.78 mm and 2.04±0.89 mm for RT; 0.86±0.39 mm and 0.71±0.42 mm for D1; 1.50±0.48 mm and 1.38±0.48 mm for D2; 41.68±13.20º and 37.78±13.18º for IA. Statistically significant differences were found between all measured parameters for buccal and lingual sides (p<0.05, paired t test). ConclusionsIn conclusion, the lingual furcation of mandibular first molars presented narrower entrance and longer root trunk than the buccal furcation, suggesting more limitation for instrumentation and worse prognosis to lingual furcation involvements in comparison to buccal lesions.

Furcation Therapy With Enamel Matrix Derivative: Effects on the Subgingival Microbiome

“…Together, the data suggest that the furcation microbiome is far more heterogeneous than interproximal sites. Evidence demonstrates that furcation anatomy varies significantly among individuals 39 , 40 . This could indicate that the intrinsic shape of the furcation could lead to different environment characteristics and determine microbial diversity.…”

Comparative evaluation of platelet-rich fibrin versus beta-tri-calcium phosphate in the treatment of Grade II mandibular furcation defects using cone-beam computed tomography

“…As the destruction of the periodontium progresses apically, the furcation of multirooted teeth is exposed, leading to the irreversible bone loss in the interradicular area. [1] Molar teeth with furcation involvement are the most common teeth to be lost. Various regenerative procedures have been tried with the aim to obtain furcation closure.…”

Natural 4‐year periodontal progression of mandibular first molars in Chinese villagers based on radiographic records

“…In our study, the mean root trunk length in mandibular first molars was 2.01 ± 0.42 mm based on panoramic radiographs. In a population from Brazil, this value was 1.37 ± 0.78 mm at buccal sites and 2.04 ± 0.89 mm at lingual sites. Thus, the root trunk length in the Chinese population seems slightly greater than that in the Brazilian population.…”