Cuny-Houchmand Madline, Renaudin Stéphane, Leroul Mustapha, Planche Lucie, Guehennec Laurent Le, Soueidan Assem
Department of Orthodontics, School of Dentistry, Nantes, France.
Open Dent J. 2013;7:1-6. doi: 10.2174/1874210601307010001. Epub 2013 Jan 24.
This clinical study was aimed at evaluating the accuracy of gingival visual inspection procedures during clinical examination and determining whether differences existed between the maxillary and mandibular gingival biotypes.
The study included 53 patients and 124 clinicians. The clinicians were asked to assign to each subject, using photographic documents, one of three biotypes: thin-scalloped, thick-scalloped, or thick-flat gingival biotype. A total of 19716 responses were collected for statistical analysis.
Identification accuracy of the gingival biotype and the intra-examiner repeatability presented poor highlighting of the limited relevance of visual inspection. In addition, the percent of agreement between classifications based on the global view of both the maxilla and mandible and the classification based on the individual mandibular or maxillary anterior teeth was not statistically significant.
Based on the above results, it can be concluded that a simple visual inspection is not effective for the identification of gingival biotype. Furthermore, evidence suggests that a difference of biotype between the maxilla and the mandible in the same patient is conceivable. Therefore, orthodontic clinical examination should incorporate a reproducible method of determining the individualized gingival biotype for each group of teeth that will be moved.
本临床研究旨在评估临床检查期间牙龈视觉检查程序的准确性，并确定上颌和下颌牙龈生物型之间是否存在差异。
该研究纳入了53名患者和124名临床医生。要求临床医生使用照片资料为每个受试者指定三种生物型之一：薄扇贝状、厚扇贝状或厚扁平状牙龈生物型。共收集了19716份回复用于统计分析。
牙龈生物型的识别准确性和检查者内重复性较差，突出了视觉检查的相关性有限。此外，基于上颌和下颌整体视图的分类与基于单个下颌或上颌前牙的分类之间的一致性百分比无统计学意义。
基于上述结果，可以得出结论，简单的视觉检查对于牙龈生物型的识别无效。此外，有证据表明同一患者的上颌和下颌之间的生物型差异是可以想象的。因此，正畸临床检查应采用一种可重复的方法，为每一组将要移动的牙齿确定个性化的牙龈生物型。
