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On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
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Feifei MAO, Meng WANG, Shuai ZHOU, Yan ZHAO, Jiaping HUANG, Fengying YIN, Haiping YANG, Pei-hui DING. Clinical relevance of distolingual roots and periodontal status in mandibular first molars: a cross-sectional study employing CBCT analysis[J]. Journal of Zhejiang University Science B, 2024, 25(3): 244-253.
@article{title="Clinical relevance of distolingual roots and periodontal status in mandibular first molars: a cross-sectional study employing CBCT analysis",
author="Feifei MAO, Meng WANG, Shuai ZHOU, Yan ZHAO, Jiaping HUANG, Fengying YIN, Haiping YANG, Pei-hui DING",
journal="Journal of Zhejiang University Science B",
volume="25",
number="3",
pages="244-253",
year="2024",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B2300586"
}
%0 Journal Article
%T Clinical relevance of distolingual roots and periodontal status in mandibular first molars: a cross-sectional study employing CBCT analysis
%A Feifei MAO
%A Meng WANG
%A Shuai ZHOU
%A Yan ZHAO
%A Jiaping HUANG
%A Fengying YIN
%A Haiping YANG
%A Pei-hui DING
%J Journal of Zhejiang University SCIENCE B
%V 25
%N 3
%P 244-253
%@ 1673-1581
%D 2024
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B2300586
TY - JOUR
T1 - Clinical relevance of distolingual roots and periodontal status in mandibular first molars: a cross-sectional study employing CBCT analysis
A1 - Feifei MAO
A1 - Meng WANG
A1 - Shuai ZHOU
A1 - Yan ZHAO
A1 - Jiaping HUANG
A1 - Fengying YIN
A1 - Haiping YANG
A1 - Pei-hui DING
J0 - Journal of Zhejiang University Science B
VL - 25
IS - 3
SP - 244
EP - 253
%@ 1673-1581
Y1 - 2024
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B2300586
Abstract: Objectivesdistolingual root of the permanent mandibular first molar (PMFM-DLR) has been frequently reported, which may complicate the treatment of periodontitis. This study aimed to assess the morphological features of PMFM-DLR and investigate the correlation between the morphological features of PMFM-DLR and periodontal status in patients with Eastern Chinese ethnic background.
Materials and methodsA total of 836 cone beam computed tomography (CBCT) images with 1497 mandibular first molars were analyzed to observe the prevalence of PMFM-DLR at the patients and tooth levels in Eastern China. Among them, complete periodontal charts were available for 69 Chinese patients with 103 teeth. Correlation and regression analyses were used to evaluate the correlation between the morphological features of DLR, bone loss, and periodontal clinical parameters, including clinical attachment loss (CAL), probing pocket depth (PPD), gingival recession (GR), and furcation involvement (FI).
ResultsThe patient-level prevalence and tooth-level prevalence of DLR in mandibular first molars were 29.4% and 26.3%, respectively. Multiple linear regression analysis suggested that bone loss at the lingual site and CAL were negatively affected by the angle of separation between distolingual and mesial roots in the transverse section, while they were significantly influenced by age and the angle of separation between distobuccal and mesial roots in the coronal section.
ConclusionsThe prevalence of PMFM-DLR in Eastern China was relatively high in our cohort. The morphological features of DLR were correlated with the periodontal status of mandibular first molars. This study provides critical information on the morphological features of DLR for improved diagnosis and treatment options of mandibular molars with DLR.
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