Kermanshah Hamid, Alzwghaibi Aws, Al-Tufaili Maitham, Ghabraei Sholeh
Dental Research Center, Dentistry Research Institute, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Case Rep Dent. 2022 Feb 27;2022:9949879. doi: 10.1155/2022/9949879. eCollection 2022.
In this article, two cases with generalized dental wear and four cases with localized dental wear are reported. In some of the cases, the worn teeth were restored with direct composite techniques with no mock-up and articulator mounting according to the canine rise method. This method is used without any change in the intercuspation of posterior teeth without a muscle relaxation appliance. It introduces a stable occlusal condition that can alter neuromuscular reflex activity, leading to improvements in certain muscle pain disorders. It is also used to protect the teeth and supporting structures from abnormal forces that might create a further breakdown and/or tooth wear.
The first step of treatment in all the cases was a composite build-up for maxillary and mandibular canines to restrict and guide the horizontal and vertical jaw movements and create adequate space for restorations. The second step was the placement of direct or indirect restorations on upper and lower anterior teeth efficiently and accurately.
This method enhanced the esthetic outcomes in a conservative approach with no reduction in tooth material or time-consuming treatments.
This technique can be suggested for the treatment of worn teeth in patients with Angle's Cl I and Cl II classifications of malocclusion based on the follow-up results. It is not applicable for the treatment of worn teeth in patients with Angle's class III because occlusion is reversed, and canine teeth do not have guidance role. . This method significantly reduces the overall treatment time, and additional steps are required to restore the worn-out teeth and/or occlusion using the canine rise method.
本文报告了2例广泛性牙齿磨损病例和4例局限性牙齿磨损病例。在部分病例中，采用直接复合树脂技术修复磨损牙齿，未制作模型，也未根据尖牙升高法在牙合架上进行安装。该方法在不使用肌肉松弛矫治器的情况下，在后牙牙尖交错位不变的情况下使用。它引入了一种稳定的咬合状态，可改变神经肌肉反射活动，从而改善某些肌肉疼痛疾病。它还用于保护牙齿及其支持结构免受可能导致进一步破坏和/或牙齿磨损的异常力量影响。
所有病例治疗的第一步是对上颌和下颌尖牙进行复合树脂修复，以限制和引导颌骨的水平和垂直运动，并为修复创造足够的空间。第二步是高效准确地在上、下前牙上放置直接或间接修复体。
该方法以保守的方式提高了美学效果，且未减少牙齿材料或进行耗时的治疗。
根据随访结果，对于安氏I类和II类错牙合患者的磨损牙齿治疗，可推荐使用该技术。它不适用于安氏III类患者的磨损牙齿治疗，因为咬合关系相反，尖牙不具有引导作用。该方法显著缩短了整体治疗时间，使用尖牙升高法修复磨损牙齿和/或咬合需要额外的步骤。
