Addy M, Dummer P M, Hunter M L, Kingdon A, Shaw W C
Department of Periodontology, University of Wales College of Medicine, Health Park, England.
J Periodontol. 1987 Nov;58(11):752-7. doi: 10.1902/jop.1987.58.11.752.
The effects of fraenal attachment, upper lip coverage, and mandibular vestibular depth on plaque and bleeding indices in the maxillary and mandibular anterior segments were studied in a group of 1015 school children aged 11.5 to 12.5 years. The position of the mandibular labial fraenum was relatively unimportant to plaque and mandibular gingivitis, but anterior fraenal attachment in the maxilla appeared to affect the retention of plaque and the degree of gingivitis. Maxillary and mandibular plaque and bleeding scores increased with decreasing upper lip coverage at rest. In the mandibular anterior segment, plaque and bleeding indices decreased with increasing vestibular depth. Further analysis demonstrated that fraenal attachment and vestibular depth and fraenal attachment and lip coverage were significantly associated. However, two-way analysis of variance indicated that the influence of fraenal attachment, vestibular depth, and lip coverage on plaque and gingivitis was independent. The influences of these soft tissue variables on plaque accumulation and gingivitis were of small clinical significance and not in themselves a justification for mucogingival surgery.
对1015名年龄在11.5至12.5岁的学童进行了研究，以探讨系带附着、上唇覆盖度和下颌前庭深度对上颌和下颌前部牙菌斑及出血指数的影响。下颌唇系带的位置对牙菌斑和下颌牙龈炎相对不太重要，但上颌前部的系带附着似乎会影响牙菌斑的留存和牙龈炎的程度。静止时，上颌和下颌的牙菌斑及出血分数随上唇覆盖度降低而增加。在下颌前部，牙菌斑和出血指数随前庭深度增加而降低。进一步分析表明，系带附着与前庭深度以及系带附着与唇覆盖度之间存在显著关联。然而，双向方差分析表明，系带附着、前庭深度和唇覆盖度对牙菌斑和牙龈炎的影响是独立的。这些软组织变量对牙菌斑积聚和牙龈炎的影响在临床上意义不大，其本身并不能成为进行龈黏膜手术的理由。
