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Studies on Maintenance Plan for Periodontal Disease in Prosthodontic Treatment for Partially Edenturous Dentition

部分无牙列修复中牙周病维护方案的研究

基本信息

批准号：
01480455
负责人：
KISHI Masataka
金额：
$ 0.51万
依托单位：
Tokyo Dental College
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01480455/
关键词：
maintenance plan for partially edentulous patients plastic deformation of soft tissues nonirritating relining material disclosing method for denture fitness condition of periodontal tissues of abutment teeth 歯周ポケットの深さ床縁歯齦縁間距離支台歯負担能力

项目摘要

To clarify the maintenance plan for periodontal disease in prosthodontic treatment for partially edentulous patients, clinical examination for plastic deformation of underlying soft tissues, improvement of disclosing method for denture fitness, development of new relining material and clinical evaluation of periodontal tissues on the abutment teeth of partial denture wearer were investigated.1. Study on the plastic deformation of underlying palatal mucosa1) Swelling of mucousa membrane in the non-pressure-supporting area are occurred immediately after denture insertion, and the swelling height reaches about 80% of it's maximum value in three days in the lower posterior region. Thereafter, but, it changes very slow.2) A cleanliness of the border between the non-pressure- and pressure-supporting area is high in the alveolar crest region and low in the buccal border side of the area.2. Improvement of disclosing method for denture fitness1) Disclosing method is usually applying on the chec … More king of denture fitness, on the densitmetry anarisis for the record of white silicone, more than 70% of the ratio of the most closest area of the record shows good fitness, however, it is ill-fitting to the ratio of less than 50%.2) The denture fitness goes down gradually when the mucous membrane bears unequal supporting load on the basal surface made by the mucostatic impression, however, it is scarcely change when the mucous membrane bears an equal supporting load on the basal surface made by the the functional impression.3. Development of new relining material1) Relining for the denture base improves denture fitness, however, usual material of the relining makes much irritation and bad taste during preparation. Therefore, a new nonirritating relining material for direct relining method is developed.2) There are many cases difficult to prepare the complaint of pain caused by thin underlying tissues. For these patients, it is needed to seat a resilient material between basal surface and soft tissue. Therefore, a new resilient relining material for direct relining method is developed.4. Clinical evaluation on the periodontal tissues of abutment teeth1) Investigations employing a disclosing solution showed that the smallest degree of plaque deposit occurred on the buccal surface of the teeth and that plaque deposit was clearly greater on the lingual surface. Plaque deposit tended to be greatest on the surface adjacent to the base.2) Periodontal pockets tended to be slightly deeper on the lingual side and the side adjacent to the base than on the buccal side. Less

为明确局部无牙颌患者修复治疗中牙周病的维护计划，对部分义齿患者基牙的临床软组织塑性变形检查、义齿适合性揭示方法的改进、新型修复材料的开发及基牙牙周组织的临床评价进行了研究。1)非承压区黏膜在义齿植入后即刻发生肿胀，后牙区肿胀高度在3天内达到最大值的80%左右。此后，变化非常缓慢。2)非承压区和承压区之间边界的清洁度在牙槽窝区较高，而在该区域的颊缘侧较低。义齿适合性披露方法的改进1)披露方法通常适用于Check…义齿适合度较高，在密度学分析中为白色硅胶记录，超过70%的记录最接近面积的比率显示适合性良好，但不符合小于50%的比率。2)当粘膜承受由粘膜静压印模造成的基面支撑载荷不相等时，义齿适合度逐渐下降，而当粘膜承受由功能印模所产生的基托表面相等的支承载荷时，义齿适合度几乎没有变化。1)义齿基托修复材料的开发提高了义齿的适合性，但常用的修复材料在制备过程中存在刺激性和口感差等问题。因此，开发了一种新的非刺激性修复材料，用于直接修复方法。2)由于底层组织较薄，许多病例难以准备疼痛的主诉。对于这些患者，需要在基底面和软组织之间放置一种弹性材料。因此，开发了一种适用于直接重修的新型弹性重修材料。对基牙牙周组织的临床评价1)采用展开液的调查显示，牙面菌斑沉积程度最小，舌面菌斑沉积明显较多。2)牙周袋的舌侧和毗邻基面的牙周袋比颊侧略深。较少