Bhagat Tushar Vitthalrao, Walke Ashwini Nareshchandra
Lecturer, Department of Prosthetics Dentistry, College of Dentistry, Prince Sattam Bin Abdulaziz University, AlKharj, Riyadh Province, Kingdom of Saudi Arabia.
PG student, Department of Oral Pathology and microbiology, S. P. Dental College & Hospital, Sawangi (M), Wardha, Maharashtra, India.
J Int Oral Health. 2015 Sep;7(9):143-7.
The ideal goal of good dentist is to restore the missing part of oral structure, phonetics, his look and the most important is restored the normal health of the patient, which is hampered due to less or insufficient intake of food. Removable partial denture (RPD) treatment option is considered as a notion, which precludes the inevitability of "floating plastic" in edentulous mouth, that many times fail to fulfill the above essential of the patients. In modern dentistry, though the dental implants or fixed partial denture is the better options, but they have certain limitations. However, overdentures and particularly telescopic denture is the overlooked technology in dentistry that would be a boon for such needy patients. Telescopic denture is especially indicated in the distal edentulous area with minimum two teeth bilaterally present with a good amount of periodontal support. This treatment modality is sort of preventive prosthodontics remedy, which in a conservative manner preserve the remaining teeth and helps in conservation of alveolar bone ultimately. There are two tenets related to this option, one is constant conservation edentulous ridge around the retained tooth and the most important is the endless existence of periodontal sensory action that directs and monitor gnathodynamic task. In this option the primary coping or inner coping are cemented on the prepared tooth, and a similar removable outer or inner telescopic crown placed tightly by using a mechanism of tenso-friction, this is firmly attached to a removable RPD in place without moving or rocking of the prosthesis, which is the common compliant of almost all patients of RPD. Copings are also protecting the abutment from tooth decay and also offers stabilization and maintaining of the outer crown. The outer crown engages the inner coping and gives as an anchor for the remainder of the dentition. This work is the review of telescopic prosthesis which is well supported by the case discussion, and designates the utilization of favorable retained tooth/teeth as abutment that drastically minimized alveolar bone resorption beneath the prosthesis and give the maximum tactile sensation of natural teeth to the patient, which is not possible with other type of RPD.
优秀牙医的理想目标是恢复口腔结构缺失部分、语音、外观，而最重要的是恢复患者的正常健康状态，患者的健康因食物摄入不足或不够而受到影响。可摘局部义齿（RPD）治疗方案被视为一种概念，它排除了无牙颌口中“漂浮塑料”的必然性，而这种情况很多时候无法满足患者的上述基本需求。在现代牙科中，尽管种植牙或固定局部义齿是更好的选择，但它们有一定局限性。然而，覆盖义齿，尤其是套筒冠义齿，是牙科中被忽视的技术，对这类有需求的患者来说将是一大福音。套筒冠义齿特别适用于双侧至少有两颗牙齿且牙周支持良好的远中无牙区。这种治疗方式是一种预防性修复治疗手段，它以保守的方式保留剩余牙齿，并最终有助于牙槽骨的保存。与该方案相关有两个原则，一是围绕保留牙持续保存无牙嵴，最重要的是牙周感觉功能的持续存在，它指导和监测咀嚼动力任务。在这种方案中，初级冠内结构或内冠粘结在预备好的牙齿上，通过张紧 - 摩擦机制紧密放置一个类似的可摘外冠或内套筒冠，它牢固地连接到就位的可摘RPD上，义齿不会移动或晃动，而这几乎是所有RPD患者常见的问题。冠内结构还能保护基牙免受龋齿侵害，也为外冠提供稳定和固定作用。外冠与内冠相嵌合，为牙列其余部分提供锚固作用。本文是对套筒冠义齿的综述，有病例讨论作为有力支撑，并指出利用有利的保留牙作为基牙可极大减少义齿下方牙槽骨吸收，并为患者提供最接近天然牙的触觉感受，这是其他类型RPD无法做到的。
