Yaghini Jaber, Manesh Vahid Sakhaei, Janbakhsh Noushin
Associated Professor, Dental Implant Research Center, Department of Periodontics, Dental School, Isfahan University of Medical Sciences, Isfahan, Iran.
Dentist, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
J Dent (Tehran). 2016 Sep;13(5):365-372.
The purpose of the present study was to evaluate the effect of modified Widman flap (MWF) surgery (as a periodontal treatment procedure) on maximum bite force (MBF; as an indicator of patient function).
In this clinical trial, 24 patients were examined for their MBF before and at one, four and eight weeks after their MWF surgery. These recordings along with the patients' demographics were analyzed using repeated measures ANOVA at a significance level of 0.05.
Males had a significantly higher MBF than female patients. Repeated measures ANOVA revealed a significant difference in MBF among the four time points (P<0.001) in each gender group. The MBFs recorded at baseline, and at four and eight weeks were not significantly different (P=0.148). Also, MBF showed a slight increase in male patients while it decreased in females over time.
The MWF surgery does not eventually decrease patients' MBF, which is a relief for patients. This procedure is therefore advised in order to save the maximum number of teeth as it remains the most significant factor determining MBF. However, this surgery has more favorable results in male patients. At four weeks after surgery, the patients will regain their baseline bite force.
本研究旨在评估改良Widman瓣手术（作为一种牙周治疗方法）对最大咬合力（MBF；作为患者功能指标）的影响。
在这项临床试验中，对24名患者在改良Widman瓣手术前、术后1周、4周和8周时的最大咬合力进行了检测。使用重复测量方差分析对这些记录以及患者的人口统计学数据进行分析，显著性水平为0.05。
男性患者的最大咬合力显著高于女性患者。重复测量方差分析显示，每个性别组的四个时间点之间的最大咬合力存在显著差异（P<0.001）。在基线、4周和8周时记录的最大咬合力没有显著差异（P=0.148）。此外，随着时间的推移，男性患者的最大咬合力略有增加，而女性患者的最大咬合力则有所下降。
改良Widman瓣手术最终不会降低患者的最大咬合力，这对患者来说是一种宽慰。因此，建议采用该手术以保留尽可能多的牙齿，因为牙齿数量仍然是决定最大咬合力的最重要因素。然而，该手术在男性患者中效果更佳。术后4周，患者将恢复其基线咬合力。
