Research of pulp chamber height of mandibular first molar in middle aged and elderly people based on cone beam computed tomography
LIU Yan
NIU Zhong-ying
YAN Shu
SHI Yan-wei
Abstract：Objective:To investigate the relationship between pulp chamber height of mandibular first molar with age in middle-aged and elderly people using cone-beam computed tomography (CBCT),provide reference for clinical accurate treatment.Methods:A total of 210 CBCT images in middle aged and elderly people were chosen and divided into 3 age groups as follows:A:45-54 years old,B:55-64 years old,C:65-74 years old which included 105 males and 105 females.alileo CBCT scanning and matching software were used to obtain the mandibular first molar image.The height of the medullary cavity in the axial axis was measured and the corresponding individual age was calculated and statistically analyzed.Results:On long axis,the height of pulp chamber in group A was 0.71±0.43 mm in males and 0.74±0.37 mm in females;In group B was 0.61± 0.32mm in males and 0.42± 0.2 l mm in females,and In group C was 0.39± 0.25rm in males and 0.38± 0.30 mm in females.95.24％ pulp chamber height were between 0-1.5 mm.and there was no statistical difference between males and females (P＞0.05) in addition to group B(P＜0.05).With aging,the height of pulp chamber was dcreased;there were negative correlations between the height and age (P＜0.05).Conclusion:The pulp chamber height of mandibular first permanent molar pulp on long axis in middle-aged and elderly people is related to age.It was statistically significant correlation with age but there is no statistical difference between males and females.
Keywords：CBCTmiddle-aged and elderly peoplemandibular first molarpulp chamberaged
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 209-212 )