Jena Debkant, Balakrishna Kandarpa, Singh Sandeep, Naqvi Zuber A, Lanje Archana, Arora Nitin
Department of Conservative Dentistry and Endodontics Institute of Dental Sciences, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India, Phone: +91889554795, e-mail:
Department of Pediatric Dentistry, Anil Neerukonda Institute of Dental Sciences, Visakhapatnam, Andhra Pradesh, India.
J Contemp Dent Pract. 2018 Sep 1;19(9):1095-1099.
The present study aimed to find prevalence of pulp stones in known South Indian orthodontic patients and to find correlation between pulp stones and patients who underwent orthodontic treatment as well as to reveal any differences due to gender, tooth type, and dental arches.
The present retrospective study was carried out among 200 patients who underwent nonextraction orthodontic treatment. Maxillary and mandibular first and second premolar and molar teeth were selected for the purpose of the study using panoramic radiographs. A total of 3200 teeth of 200 patients were studied for the presence of pulp stones. Statistical analysis of the obtained data was carried out using Statistical Package for Social the Sciences (SPSS) version 22.0. Chi-square test was applied to find the significant value and p < 0.05 was considered as a significant value.
In all, 11.5% of cases reported pulp stones before the commencement of the orthodontic treatment and 15.5% cases after completion of orthodontic treatment. Overall, 4% increase in cases were found which was statistically significant (p < 0.05); 5.1% of total number of teeth were evaluated in both arches before orthodontic treatment and 6.3% of teeth after orthodontic treatment revealed the presence of pulp stones. Maxillary first molar was found to be teeth with maximum number of pulp stones before and after orthodontic treatment.
The present study reported the prevalence of pulp stones to be increased by 4% in the pre- and posttreat-ment radiographs, which was statistically significant. The study found the presence of pulp stones more in maxillary first molar and it was found to be teeth with maximum number of pulp stones before and after orthodontic treatment. However, further researches with larger samples are advisable.
Dentists performing endodontic treatment among patients who have undergone orthodontic treatment should be aware about the increased chances of presence of pulp stones and thus to avoid hindrances encountered during extirpating the pulp, they should thoroughly study the radiographs beforehand.
本研究旨在确定南印度正畸患者牙髓石的患病率，找出牙髓石与接受正畸治疗患者之间的相关性，并揭示性别、牙型和牙弓之间的差异。
本回顾性研究对200例接受非拔牙正畸治疗的患者进行。使用全景X线片选择上颌和下颌第一、第二前磨牙及磨牙作为研究对象。对200例患者的3200颗牙齿进行牙髓石检查。使用社会科学统计软件包（SPSS）22.0对所得数据进行统计分析。采用卡方检验确定显著性值，p<0.05被视为显著性值。
总体而言，11.5%的病例在正畸治疗开始前报告有牙髓石，15.5%的病例在正畸治疗完成后有牙髓石。总体上，病例增加了4%，具有统计学意义（p<0.05）；正畸治疗前两牙弓中5.1%的牙齿被评估有牙髓石，正畸治疗后6.3%的牙齿有牙髓石。上颌第一磨牙被发现是正畸治疗前后牙髓石数量最多的牙齿。
本研究报告称，治疗前后X线片显示牙髓石患病率增加了4%，具有统计学意义。研究发现上颌第一磨牙中牙髓石更多，且是正畸治疗前后牙髓石数量最多的牙齿。然而，建议进行更大样本量的进一步研究。
对接受过正畸治疗的患者进行牙髓治疗的牙医应意识到牙髓石存在的可能性增加，因此为避免在牙髓摘除过程中遇到阻碍，应事先仔细研究X线片。
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