Evaluation of the effect of gingival retraction with laser and retraction cord on marginal adaptation and gingival recession in full ceramic crowns for first premolar of maxilla – a clinical trial study

Kermanshah University of Medical Sciences0 个研究点目标入组 20 人开始时间: 待定最近更新: 2022年4月4日

适应症

试验速览

暂无简介。

•Good general health(The patient has no systemic disease that can affect clinical outcomes)
•Periodontal health(Plaque index and BOP should be below 20% before prosthetic treatment)
•There is a good keratinized gum around the abutment tooth (gingival biotype is thick).
•It should not have obvious signs and symptoms of bruxism or clenching
•abutment teeth need reconstruction
•Non-living abutment teeth that have a positive long-term prognosis based on clinical evaluations and radiology
•Non-living abutment teeth that have a positive long-term prognosis based on clinical evaluations and radiology
•The teeth have sufficient preparation length to ensure retention and resistance shapes
•The patient is willing to participate in our study and sign the consent form.

•The patient is unwilling or unable to observe adequate oral hygiene (index plate and BOP should be below 20%).
•abutment teeth have clinical signs.
•Have loose teeth of second or more degrees.
•Teeth need periodontal surgery before preparing the crown.
•Parafunctional habits
•Periodontitis, severe gingivitis, poor oral hygiene and high caries activity

发起方