Retention and Wear Characteristic Assessment of OT Equator Smart Box Attachment
Retention and Wear Characteristic Assessment of OT Equator Smart Box Attachment Versus Ball Attachment for Mandibular Two Implant Assisted Over Denture , In-vitro Study
研究概览
详细说明
Implant supported overdenture can provide better mastication force than complete denture but less than the normal teeth . Most of the patient reported that implant supported overdenture has many superior features over the conventional complete denture in stability and retention Key factors related to successful treatment with overdentures include the number, location, and distribution of implants and choice of abutment. While the use of parallel implants that are widely distributed is generally desirable for optimal treatment, patients often present with challenging anatomical features, insufficient bone volume in all dimensions, and/or critical anatomy that precludes ideal placement of dental implants. Some clinicians may consider the ideal placement of implants for overdentures as parallel to each other and perpendicular to the occlusal plane of the denture Anatomical features associated with mandibular or maxillary edentulous ridges can range from straight or rounded to irregular and sharp ridges, and variability in bone width may limit potential implant sites for overdentures. Factors such as narrow bone volume, the inferior alveolar nerve being anterior or superior positioned, extensive bony undercuts, the inferior portion of the maxillary sinus, proximity to high-risk vascular structures, or a patient's desire to avoid additional surgical procedures may prompt a clinician to angulate a dental implant, which could result in the positioning of implants in non-ideal configurations.
Excessive angulation, increased maintenance and wear of inserts, and difficulty maintaining hygiene. Increased angulation may result in greater challenges to inserting and removing the prosthesis, which can become difficult for patients who are older and/or have limited dexterity. This challenge also can make it hard for patients to properly clean the inside of the retentive portion of the stud-style abutment and may increase wear of the retentive inserts Resilient Ball attachment most commonly used Ball attachment the simplest of all stud attachments which widely used because it is practical, effective, relatively low cost, less technique sensitive, ease of handling, minimal chair side time requirements and their possible applications with both root and implant-supported prostheses so it is used with non-splinted implants in clinical studies, it has been shown that changes in the retention of the prostheses occurred frequently. Both decrease and considerable increase in retention occurred as a result of attachment abrasion and micro movements during the mastication process The ball attachments showed only a few minor, easy manageable complications. Four out of 36 attachments gave reason for treatment. Two matrices loosened out of the mandibular denture and had to be fastened by adding acrylic resin after 1 and 4 weeks of loading. One patrix part of the ball attachment unsettled after 2 days of loading and was refastened. One ball attachment matrix lost its retention capacity and had to be reactivated after a period of 2 weeks. All these complications occurred in subjects where the implants were not perfectly parallel to each other positioned in the mandible. The loading conditions of these attachments were therefore not as favorable as for more parallel inserted implants A lack of parallelism of the implants creates considerable wear of the rubber rings in a relatively short time span.
Rhein 83, Italy, also has developed Smart Box, which could be used with the OT Equator in patients of extreme divergencies among the implants. The Smart Box has an inner tilting mechanism that enables a passive insertion with divergent implants up to 50 degrees(159).
研究类型
注册 (预期的)
联系人和位置
学习联系方式
- 姓名:Doaa A Heshmat, lecturer
- 电话号码:01006455491
- 邮箱:doaa.heshmat@dentistry.cu.edu.eg
参与标准
资格标准
适合学习的年龄
- 孩子
- 成人
- 年长者
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- mandibular cast
Exclusion Criteria:
-
学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
干预/治疗 |
---|---|
Equator attachment
Implant installation over epoxy resin model at the canine area on both sides following the surgical protocol of the implant placement,Equator Attachment fabrication is firmly screwed to the fixture on both sides at the canine region
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This research aimed to evaluate the retentive power and wear of the smart box attachment use with tilted two implant assisted mandibular overdenture
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ball attachment
Implant installation over epoxy resin model at the canine area on both sides following the surgical protocol of the implant placement,ball Attachment fabrication is firmly screwed to the fixture on both sides at the canine region
|
This research aimed to evaluate the retentive power and wear of the smart box attachment use with tilted two implant assisted mandibular overdenture
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Retention
大体时间:6 month
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Retention of OT equator smart box attachment versus ball attachment for mandibular two implant assisted over denture
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6 month
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
wear evaluation
大体时间:6 month
|
wear evaluation of OT equator smart box attachment versus ball attachment for
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6 month
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合作者和调查者
出版物和有用的链接
研究记录日期
研究主要日期
学习开始 (预期的)
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
其他研究编号
- equator implant attachment
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
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