预成纤维桩口腔修复效果及对咀嚼效率与口腔咬合的影响

目的:探讨预成纤维桩口腔修复效果及对咀嚼效率与口腔咬合的影响。方法:选取我院2019年10月—2021年10月收治的100例需进行口腔修复的牙列缺损患者,将所有患者应用随机数字分组法分为观察组与对照组,每组50例。所有患者均行纤维桩桩核修复,其中对照组使用可塑纤维桩,观察组使用预成纤维桩,对比两组患者的总体修复效果、咀嚼效率、咀嚼功能、咬合力以及并发症发生情况。结果:观察组颜色匹配、临面接触、表面质地、继发龋、边缘密合度、舒适度相关修复效果A级例数明显多于对照组,C级例数明显少于对照组(P<0.05);治疗后两组患者咀嚼效率与咀嚼功能评分均升高,且观察组高于对照组(P<0.05);治疗前两组患者咬合力对比差异无统计学意义(P>0.05),治疗后两组患者咬合力均升高,且观察组高于对照组(P<0.05);观察组并发症总发生率明显低于对照组(P<0.05)。结论:对桩核冠修复患者采取预成纤维桩修复能够提升修复效果、咀嚼功能与咀嚼效率、口腔咬合力,减少远期并发症的发生,值得临床应用推广。

口腔咬合装置对初产妇第二产程时间及剖宫产率的干预效果评价

评价口腔咬合装置在初产妇第二产程中运用对其第二产程时间及剖宫产率的干预效果评价。方法 选取2017年9月—2018年10月本院住院分娩的200例初产妇,将200例初产妇随机分成2组,实验组在第二产程中教导产妇用力的过程中同时使用口腔咬合装置,对照组在第二产程中常规教导产妇用力,比较两组产妇的第二产程时间、剖宫产率。结果 实验组的第二产程时间平均为23.9±1.323分钟明显短于对照组34.9±3.228分钟。两组比较,差异具有统计学意义(p<0.05)。结论:初产妇第二产程中使用口腔咬合装置能明显缩短第二产程的时间,在临床应用中具有推广价值。

口腔科咬合调整联合正畸治疗牙周疾病的疗效及对HBD-2、IL-1β、牙槽骨密度的影响

目的:分析口腔科咬合调整联合正畸治疗牙周疾病的疗效和对β防御素-2(HBD-2)、白介素-1β(IL-1β)及牙槽骨密度的影响。方法:选择我院2018年6月—2019年10月收治的98例牙周疾病患者,均接受口腔科咬合调整联合正畸治疗,观察患者的疗效,龈沟液HBD-2、IL-1β水平,牙槽骨密度,牙周状态,咀嚼效能及并发症。结果:98例患者中优78例,良16例,差4例,优良率为95.92%;治疗后,龈沟液HBD-2水平高于治疗前,IL-1β水平低于治疗前(P<0.05);治疗后,上颌及下颌牙槽骨密度与治疗前比较无显著差异(P>0.05);治疗后牙周袋深度、出血指数及菌斑指数均低于治疗前(P<0.05);治疗后咀嚼效能高于治疗前(P<0.05);并发症以牙齿松动、口臭、牙周脓肿及疼痛为主,总发生率为16.33%。结论:口腔科咬合调整联合正畸治疗牙周疾病的疗效肯定,能够促进HBD-2表达,降低IL-1β水平,对牙齿骨密度的影响较小。

Distalization of maxillary molars for Class Ⅱ malocclusion with Chinese Ni-Ti coil-springs appliance

Objective: To evaluate the effects of the Chinese Ni-Ti coil-springs appliance on distalization of maxillary molars and the reciprocal effects on the anchorage teeth. Methods:Twenty-four adolescent patients(12 boys,12 girls) with Class Ⅱ malocclusion were selected and the coil-springs appliance was used during the treatment. Pre- and postdistalization lateral cephalometric radiographs were analyzed and compared. Results: The average time for the correction of Class Ⅱ molar relationship was 4.6 months. And the mean distance of molar distalization was 4.4 mm. The Chinese Ni-Ti coil-springs also demostrated less tipping and better bodily movement of maxillary molars. Conclusion: This study suggests that the Chinese Ni-Ti coil-springs appliance distalizes the upper molar significantly, while there is no remarkable loss of anchorage because of patients’ wearing headgear with J hooks at night and Class Ⅱ elastics in the day time.

Influence of occlusal splint thickness on the position of mandible

Objective: To investigate the influence of occlusal splint thickness on mandibular movement. Methods: Stabilization occlusal splints of 3, 5 and 7 mm thickness were respectively used during clenching from light contact in intercuspal position and the movement of condyles and incisor point were recorded in 5 healthy subjects. Results:The condyles moved anteriorly and superiorly without wearing occlusal splint. When wearing the occlusal splints the condyles displaced anteriorly and inferiorly. The distance of displacement increased gradually with raising the thickness of splint, though the significant difference was just found in right condyle in superior- inferior movement. The condyles went again on a path of anterior and superior direction when subjects clenched from the displaced position. In right condyle the displacement was significantly greater at 7 mm splint than that at 3 mm splint both in anterior-posterior and inferior-superior direction, while in left condyle only in anterior-posterior direction. Meanwhile, the incisal point movement was larger at 7 mm splint than at 3 mm splint in inferior-superior direction. In tapping movement there were no significant differences in condyle movement between the different thickness of occlusal splint. However, the coefficient of variation in total cycle time was the greatest when wearing the splint of 7 mm. Conclusion: Occlusal splint of 7 mm has greater effect than that of 3 mm on condyle movement, but no obvious difference with occlusal splint of 5 mm. When occlusal splint of 7 mm is inserted, the stability of condyle might be influenced during tapping movement.

口腔数字化技术在口腔修复临床中的应用浅析

探究在临床口腔修复中运用口腔数字化技术的实际修复效果。方法:以68例我院口腔科收治的需进行口腔修复的患者为研究对象,将其进行随机分组后分别予对照组、实验组以常规治疗以及口腔数字化技术治疗,观察分析2组患者的修复效果以及患者的满意度。结果:实验组患者在修复后的适应性、美观性以及组织健康和口腔咬合功能评分均高于对照组,且患者满意度更高,组间差异均显著。结论:在临床口腔修复中运用口腔数字化技术能够显著优化修复效果并提高患者的满意度,可广泛用于符合适应症的口腔科患者。