Root canal conicity determination of primary second molars using nanotomography: An in vitro study

IF 2.3 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

International journal of paediatric dentistry Pub Date : 2024-04-27 DOI:10.1111/ipd.13198

Marília Pacífico Lucisano, Gilmer Torres Ramos, Daniel José Blanco‐Victorio, Laura Ricardina Ramírez‐Sotelo, Ricardo Barbosa Lima, Paulo Nelson‐Filho, Raquel Assed Bezerra da Silva, Jessica Arieta Miranda, Léa Assed Bezerra da Silva

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引用次数: 0

Abstract

BackgroundThe conicity of the root canals of primary teeth is an important measure for endodontic therapies. However, determining this conicity depends on the methods employed, which requires further investigation.AimThe aim of this study was to determine the conicity of the root canals of the upper and lower primary second molars using nanotomography (nCT).DesignAn in vitro study was performed using nine primary second molars, both upper and lower, subjected to nCT. Comparisons between the diameters of root canals were performed between the thirds (cervical—D0, middle—D5, and apical—D7). The conicity (%) was determined for each root canal from cervical to apical. Data were statistically analyzed with a significance level of 5%.ResultsThe conicity ranged from 2% to 8% for the upper primary second molars. Significant differences in root canal diameter between the thirds (D0, D5, and D7 points) were observed in the mesio‐ and distobuccal roots (p < .05), but not in the palatal roots (p > .05). For the lower primary second molars, the conicity ranged from 2% to 17%, as well as significant differences in root canal diameter between the thirds (D0, D5, and D7 points) were observed in all roots (distal, mesiobuccal, and mesiolingual; p < .05).ConclusionThe conicity of the upper primary second molars was different from that of the lower ones, which showed a greater variability.

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利用纳米层析成像技术确定初级第二磨牙根管锥度：体外研究

背景原发性牙齿根管的圆锥度是牙髓治疗的一个重要指标。本研究的目的是使用纳米断层显像（nCT）确定上下初级第二磨牙根管的圆锥度。比较了三分之二根管（颈部-D0、中部-D5 和根尖-D7）的直径。从根颈部到根尖部的每个根管都测定了锥度（%）。对数据进行统计分析，显著性水平为 5%。中颊根和远颊根的根管直径在三分之二（D0、D5 和 D7 点）之间存在显著差异（p < .05），但腭根的根管直径没有显著差异（p > .05）。结论上部初级第二磨牙的锥度与下部初级第二磨牙的锥度不同，后者显示出更大的变异性。

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来源期刊

International journal of paediatric dentistry 医学-小儿科

CiteScore

5.50

自引率

2.60%

发文量

审稿时长

6-12 weeks

期刊介绍： The International Journal of Paediatric Dentistry was formed in 1991 by the merger of the Journals of the International Association of Paediatric Dentistry and the British Society of Paediatric Dentistry and is published bi-monthly. It has true international scope and aims to promote the highest standard of education, practice and research in paediatric dentistry world-wide. International Journal of Paediatric Dentistry publishes papers on all aspects of paediatric dentistry including: growth and development, behaviour management, diagnosis, prevention, restorative treatment and issue relating to medically compromised children or those with disabilities. This peer-reviewed journal features scientific articles, reviews, case reports, clinical techniques, short communications and abstracts of current paediatric dental research. Analytical studies with a scientific novelty value are preferred to descriptive studies. Case reports illustrating unusual conditions and clinically relevant observations are acceptable but must be of sufficiently high quality to be considered for publication; particularly the illustrative material must be of the highest quality.