Brannon Robert B, Pousson Rebecca R
Department of Oral and Maxillofacial Pathology, Louisiana State University School of Dentistry, New Orleans, Louisiana, USA.
J Dent Hyg. 2003 Summer;77(3):180-4.
This study was undertaken to increase the knowledge of dental hygienists and dentists of a normal anatomic gingival structure, the retrocuspid papillae (RCP), so that patients can avoid clinical misinterpretation and unnecessary biopsies.
In a three-part study, dental hygienists were surveyed on their knowledge of the RCP via questionnaire. Oral examinations of adult patients in a dental hygiene clinic were performed to obtain data on the RCP, and detailed clinical information from the pathology reports of surgically removed RCPs were tabulated. These findings were compared with findings from previously reported cases.
Part one: of the dental hygienists surveyed, 2.8% knew about the RCP. Part two: of 232 adults examined, 9.1% had RCP. The age range was 20 to 63 years; 57% of the RCPs were unilateral, and 43% were bilateral. Part three: the RCP represented 16.2% of the biopsied fibrous lesions of the mandible over a 12-year period. Their histologic features contributed to their clinical morphology of a mound or sessile nodule with or without a papillary surface.
The RCP is more prevalent in children and females and in a bilateral gingival distribution. It is a normal anatomic structure that regresses with age and requires no treatment.
开展本研究以增进口腔保健员和牙医对正常解剖学牙龈结构——磨牙后乳头（RCP）的了解，从而使患者避免临床误诊和不必要的活检。
在一项分为三个部分的研究中，通过问卷调查对口腔保健员关于RCP的知识进行了调查。在口腔卫生诊所对成年患者进行口腔检查以获取有关RCP的数据，并将手术切除的RCP病理报告中的详细临床信息制成表格。将这些结果与先前报道病例的结果进行比较。
第一部分：在接受调查的口腔保健员中，2.8%了解RCP。第二部分：在检查的232名成年人中，9.1%有RCP。年龄范围为20至63岁；57%的RCP为单侧，43%为双侧。第三部分：在12年期间，RCP占下颌骨活检纤维性病变的16.2%。其组织学特征导致其临床形态为有或无乳头状表面的丘状或无柄结节。
RCP在儿童和女性中更常见，且呈双侧牙龈分布。它是一种正常的解剖结构，会随着年龄增长而退化，无需治疗。
