Department of Oral and Maxillofacial Surgery, School of Dentistry, Complutense University of Madrid, Spain.
Acta Odontol Scand. 2012 Sep;70(5):398-404. doi: 10.3109/00016357.2011.629629. Epub 2012 Feb 27.
To determine the prevalence of supernumerary molars in a sector of the population of Madrid, as well as the possible complications associated with the presence of hypergenetic molars.
A retrospective, descriptive study was carried out, which included a data assessment of all patients (13557) seeking dental care at a hospital's department of oral surgery across 4 years. The proposed methodology consisted of preparing a medical record in order to obtain data on the medical record number, age and sex of the patient, radiological findings such as location and type of supernumerary molar, retained/erupted molar, related accidents and tooth morphology.
Supernumerary molars were found to be present in 130 patients, representing a prevalence of 0.96% of the total population studied. These patients had a total of 173 hypergenetic molars, consisting of 137 distomolars and 36 paramolars Mechanical-obstructive pathology was associated with 28.9%, whereas enlargement of the follicular sack bigger than 3 mm was present in 16.2% of the sample.
Supernumerary molars are usually diagnosed as a coincidental radiological finding without any associated pathology. However a higher percentage of comorbidity was found than initially expected.
确定马德里某一人群中超生牙的流行率，以及与多生牙存在相关的可能并发症。
进行了一项回顾性描述性研究，对一家医院口腔外科 4 年来所有接受牙科治疗的患者（13557 名）的数据进行了评估。该研究采用的方法包括准备一份病历，以获取病历号、患者年龄和性别、影像学发现（如多生牙的位置和类型、滞留/萌出的磨牙、相关意外事件和牙齿形态）等数据。
在 130 名患者中发现有多生牙，占研究总人数的 0.96%。这些患者共有 173 颗多生牙，其中 137 颗为远中磨牙，36 颗为近中磨牙。28.9%的患者存在机械阻塞性病变，16.2%的患者滤泡袋增大超过 3mm。
多生牙通常被诊断为偶然的影像学发现，没有任何相关的病理学表现。然而，我们发现的合并症比例高于最初的预期。
