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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effects of mandibular odontogenic keratocyst surgery and removable partial prostheses on masticatory performance.
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Effects of mandibular odontogenic keratocyst surgery and removable partial prostheses on masticatory performance.

机译：下颌牙源性角膜囊肿手术和可摘局部假体对咀嚼性能的影响。

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STATEMENT OF PROBLEM: Surgical treatment of odontogenic keratocysts often results in tooth loss. However, information about the effects of different surgical methods and postoperative prosthetic therapy on masticatory performance is lacking. PURPOSE: The purpose of this study was to compare tooth loss following odontogenic keratocyst treatment by enucleation, segmental mandibulectomy with reconstruction, or marsupialization, and the resultant effect on masticatory performance with and without removable partial dentures (RPDs). MATERIAL AND METHODS: Patients with odontogenic keratocysts of the mandible were treated with either enucleation (n=33), segmental mandibulectomy and immediate autogenous bone reconstruction (n=18), or marsupialization in combination with secondary enucleation (n=9). Clinical and radiographic examinations were used to assess the number of teeth with cyst involvement preoperatively and the number of teeth lost following cyst treatment. Masticatory performance with peanuts was measured after cyst treatment both with and without an RPD. The differences in the number of the teeth involved preoperatively and lost postoperatively were compared among the 3 groups with a chi square test for trend. The absorbance value (reflecting masticatory performance) difference among the 3 groups preprosthesis and postprosthesis was analyzed using a 1-way analysis of variance (ANOVA), respectively. The pre- and postprosthetic comparison was made within each group, and a paired t test was used. Age was compared using 1-way ANOVA among 3 groups. Gender was compared using the chi square test (alpha=.05). RESULTS: Although the average number of teeth involved preoperatively with the cyst was similar among the 3 treatment groups, the number of teeth lost following marsupialization was significantly less than the number lost following enucleation or segmental mandibulectomy. Prior to provision of an RPD, mean masticatory performance (mean absorbance value of 0.36+/-0.08) in subjects receiving segmental mandibulectomy was significantly lower than for subjects receiving enucleation (0.52+/-0.15) or marsupialization (0.89+/-0.12) (P<.01). Provision of an RPD significantly increased masticatory performance in subjects who were treated by enucleation or segmental mandibulectomy (P<.01). CONCLUSION: Masticatory performance following odontogenic keratocyst surgery is related to the number of lost teeth, which is a function of the operative method used. Restoration with an RPD postoperatively may improve masticatory function when multiple teeth are lost following enucleation or segmental mandibulectomy.
机译：问题陈述：牙源性角化囊的外科手术治疗通常会导致牙齿脱落。但是，缺乏有关不同手术方法和术后修复疗法对咀嚼性能影响的信息。目的：本研究的目的是比较通过摘除，分段下颌骨切除术再造或有袋化治疗牙源性角膜囊肿后的牙齿脱落情况，以及有无可摘局部义齿（RPD）对咀嚼性能的影响。材料与方法：对患有下颌牙源性角化囊肿的患者进行摘除术（n = 33），节段性下颌骨切除术和即刻自体骨重建（n = 18）或有袋化联合继发摘除术（n = 9）。临床和影像学检查用于评估术前囊肿受累的牙齿数量以及囊肿治疗后丢失的牙齿数量。在有和没有RPD的囊肿治疗后，测量花生的咀嚼性能。通过卡方检验趋势比较了3组患者术前和术后丢失的牙齿数量的差异。分别使用1方差分析（ANOVA）分析了3组假体和假体之间的吸光度值（反映咀嚼性能）的差异。在每个组中进行假体前后的比较，并使用配对t检验。在3组中使用1次方差分析比较年龄。使用卡方检验比较性别（alpha = .05）。结果：尽管在3个治疗组中，术前囊肿所累及的平均牙齿数量相似，但有袋化后丢失的牙齿数量明显少于摘除眼球或分段下颌切除术后丢失的牙齿数量。在提供RPD之前，接受分段下颌骨切除术的受试者的平均咀嚼性能（平均吸光度值为0.36 +/- 0.08）显着低于接受摘除术（0.52 +/- 0.15）或有袋化术（0.89 +/- 0.12）的受试者（P <.01）。 RPD的提供显着提高了通过摘除术或节段性下颌骨切除术治疗的受试者的咀嚼性能（P <.01）。结论：牙源性角膜囊肿手术后的咀嚼性能与脱落的牙齿数量有关，这与所使用的手术方法有关。摘除或分段下颌骨切除术后丢失多颗牙齿后，RPD术后恢复可能会改善咀嚼功能。

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