Morphological and topographical characteristics of posterior supernumerary molar teeth: an epidemiological study on 25,186 subjects.
Morphological and topographical characteristics of posterior supernumerary molar teeth: an epidemiological study on 25,186 subjects.
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DOI：
10.4317/medoral.19775
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发表时间：
2014-11-01
期刊：
影响因子：
--
通讯作者：
Calasso S
中科院分区：
文献类型：
--
作者：
Cassetta M;Altieri F;Giansanti M;Di-Giorgio R;Calasso S
目的：调查意大利高加索人群中多生磨牙（SM）的患病率、性别差异、牙弓、形态和在牙弓内的位置。研究设计：评估了25，186名年轻患者的记录。仅分析了与颌骨后部多生牙相关的数据。在临床和放射学检查的基础上制定的曲面断层片的诊断牙肥大。在受试者水平上对SM患病率和性别比进行统计分析。根据牙齿的形态和地形特征进行统计分析。采用χ2检验（P≤ 0.05）分析多生形态与牙弓、多生位置与牙弓、多生形态与牙弓位置的关系。结果：45例患者共发现61颗后牙多生牙。男女比例为2.5：1，平均年龄为21.23岁（IC：95%），上颌（62.3%）多于下颌，多生牙（60.7%）多于补充牙。上颌窦瘤多呈结节状（56.8%），臼齿旁（64.9%）较臼齿间多见。多生牙形态与牙弓（P= 0.087）、多生牙位置与牙弓（P =0.511）、多生牙形态与位置（P =0.216）的相关性均无统计学意义。 结论：与多生牙相关的流行病学研究有助于临床医生对多生牙的早期诊断。在这项回顾性研究中，SM的患病率为0.18%。SM在男性和上颌骨中更常见。多余型多于补充型，圆锥形和旁磨牙是最常见的形态和位置。 关键词：多牙症，患病率，多生磨牙，二齿，齿旁。
Objectives: To investigate the prevalence , gender difference , arch , morphology and position within the arch of supernumerary molar (SM) teeth in a referred Italian Caucasian population. Study Design: Records of 25,186 young patients were evaluated. Only data related to supernumerary teeth in the posterior region of the jaws were analyzed. The diagnosis of hyperdontia was formulated during the clinical and radiological examinations based on panoramic radiographs. Statistical analysis was conducted at level of subjects in the assessment of prevalence of SMs and sex ratio. Statistical analysis was conducted at level of teeth according to their morphological and topographic characteristics. The analysis of association between supernumerary morphology and arch, between supernumerary position and arch and between morphology and position was performed using the χ2 test (P≤ 0.05). Results: 61 posterior supernumerary teeth were found in 45 patients. The male to female ratio was 2.5:1 ;the mean age was 21.23 (IC:95%).The SMs were found more frequently in the maxilla (62.3%) than in the mandible; supernumerary teeth (60.7%) were more frequent than supplemental teeth. The SMs were mostly of tuberculate shape (56.8%) and paramolars teeth (64.9%) were more common than distomolars. 54% of teeth were erupted in the arch. No statistically significant relationship were found between the supernumerary teeth shape and the arch (P= 0.087) , between supernumerary teeth position and the arch (P=0.511) and between morphology and position (P=0.216). Conclusions: Epidemiological studies related to supernumerary teeth can be useful to clinicians in the early diagnosis of this anomaly. In this retrospective study the prevalence of SMs was 0.18%. SMs were more frequent in males and in the maxilla. Supernumerary were more frequent than supplemental; the conical morphology and paramolar position were the most common shape and position. Key words:Hyperdontia, prevalence, supernumerary molars, distomolar, paramolar.
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DOI：
10.1016/j.tripleo.2008.01.035
发表时间：
2008-06-01
期刊：
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
影响因子：
--
作者：
Anthonappa, Robert P.;Omer, Rashied S. M.;King, Nigel M.
通讯作者：
King, Nigel M.
影响因子：
2.2
作者：
Kara, Muhammed-Isa;Aktan, Ali-Murat;Polat, Hidayet-Burak
通讯作者：
Polat, Hidayet-Burak
DOI：
10.1046/j.1365-263x.2002.00366.x
发表时间：
2002-07-01
影响因子：
3.8
作者：
Rajab, L D;Hamdan, M A M
通讯作者：
Hamdan, M A M
影响因子：
3.4
作者：
Mercuri, Emanuele;Cassetta, Michele;Barbato, Ersilia
通讯作者：
Barbato, Ersilia
影响因子：
1.8
作者：
Mason, C;Azam, N;Rule, DC
通讯作者：
Rule, DC