Clinical Comparative Evaluation of Different Retraction Systems in Gingival Displacement and Their Influence on Periodontal Health
试验速览
- 阶段
- 不适用
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- Time of placement
研究概览
简要总结
The interrelationship of restorative dentistry and periodontics is a dynamic one. The interactions between restorative dentistry and periodontal health have been well-documented both clinically and histologically.
The interplay between periodontics and restorative dentistry is present at many fronts, including location of restorative margins, alloy sensitivity, crown contours, and response of the gingival tissues to restorative preparations.
Periodontal tissues form the foundation for proper esthetics, function, and comfort of the dentition, as well as the periodontal health at the restorative gingival interface consider as prerequisite for successful outcome.
Success of fixed prosthodontics restorations is largely dependent upon the long term health and stability of the surrounding periodontal structures.
The purpose of the present study was to evaluate the clinical efficacy of 4 new gingival retraction systems; traxodent, Gingitrac, Nocord, and cord , on the basis of the time taken for placement, hemorrhage control ,the amount of horizontal gingival displacement and periodontal parameter (PI, GI, CAL and PD).
详细描述
The interplay between periodontics and restorative dentistry is present at many fronts, including location of restorative margins, alloy sensitivity, crown contours, and response of the gingival tissues to restorative preparations.
And from fixed prothodontic point of view there are several factors affect the success and durability of restorations. In general, the type of impression making, setting accuracy, material flow, temperature, humidity, mixing, disinfection and pouring time have effects on the final accuracy of the indirect restorations. Supra-gingival margins are effective in periodontal health maintenance, but do not provide optimal aesthetics.
The primary factor in defective record of marginal details is due to the inefficacy of the gingival displacement technique.
Traditionally, procedures for soft-tissue management and isolation are classified into three main approaches: Mechanical, chemical or surgical.
material and method:-
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
盲法说明
unkown the group during recording the results of outcome
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •forty patients whose ages more than 18 years were selected requiring fixed prosthesis with minimum of two abutments.
- •Clinically and radiographically healthy gingiva and periodontium around the abutments.
- •Abutment teeth of normal size and contour (no developmental anomaly or regressive age changes).
排除标准
- •Age <18 years.
- •Gingival and periodontal disease.
- •Uncontrolled diabetes, hypertension, hyperthyroidism and other cardiovascular disorders.
结局指标
主要结局
Time of placement
时间窗: the time recorded in seconds (from 1 second to 2 minutes)
time taken for placement of each retraction system was recorded during application
Hemorrhage score
时间窗: from base line to 1 day
the amount of bleedingbleeding on probing scoring as 0, 1, and 2 (0 - no bleeding, 1 - bleeding controlled within 1 minute, bleeding, 2 - bleeding not controlled within 1 minute)
次要结局
- Pocket depth(at baseline, after 1 day and after seven days)
- Gingival index(at baseline ,after 1 day and after seven days)
- Horizontal gingival displacement(from baseline to 24 hours)
- Plaque index(at baseline, after 1 day and after seven days)
研究者
Asma Serag
Lecturer of periodontology, principal investigator
Cairo University