Types and Dimensions of Molar Root Trunk Correlated with Molars Affected Class III Furcation Involvement in Taiwanese Volume 5 - Issue 1

Guey-Lin Hou*^{1, 2}

• ¹Department of Periodontics, and Graduate Institute of Dental Science, Kaohsiung Medical University, Kaohsiung, Taiwan
• ²Department of Periodontal & Prosthetic Therapeutic Center & Chairman, Chang-Gung Memorial Hospital, Kaohsiung City, Taiwan

Received: October 07, 2021   Published: October 20, 2021

Corresponding author: Guey-Lin Hou, Former Professor, Graduate Institute of Dental Science, Department of Periodontics, Kaohsiung Medical University, Taiwan

DOI: 10.32474/MADOHC.2021.05.000202

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Abstract

The purpose of the present study was to investigate the correlation of the types and dimensions of molar root trunk with Class III furcation involvement (FI) with periodontal attachment loss (PAL). The extracted teeth (169) consisted of maxillary (103) and mandibular (66) first and second molars with a final diagnosis of severe advanced periodontitis (class III FI and alveolar bone loss ≧70%) were extracted and preserved in Formalin solution and used in the present study. The root trunk length (RTL) and root length were measured using the Electronic Caliper Micrometer (ECM). The assessments of the PAL of the extract molars were taken under a stereomicroscoper equipped with micrometer scale. The clinical records including patient’s age, gender, degree of FIs and root trunk type (RTT), molar location, furcation site, and number of extracted molars. Collected data were analysed using the chisquare test and one-way ANOVA.
Results showed that significant relationships were listed as follows:
a) between the molar location and prevalence of extracted molars (p<0.001);
b) between RTT and molar location (p<0.001), and furcation sites (p<0.05);
c) between RTT and PAL (f = 4.32, p<0.05).
It was concluded that the prevalence of the molar extraction and PAL is associated with increasing length of root trunk affected with the Class III molar FI.

Keywords: RTT; PAL; Molar FI; RTL; ECM; PAL

Abstract| Introduction| Methods and Materials| Statistical Analysis| Results| Discussion| References|