Risk Assessment of Proximal Contact Loss Between Implant-supported Prostheses and Adjacent Teeth.
Trial Snapshot
- Phase
- Not Applicable
- Status
- Not yet recruiting
- Enrollment
- 100
- Locations
- 1
- Primary Endpoint
- the proximal contact surface was adjusted by a dental floss (Reach waxed dental floss from Johnson & Johnson, standard thickness)
Study Overview
Brief Summary
In this study, we collected and analysed the review results of 100 patients over 18 years of age who received implant fixed restorations in the Department of Stomatology of the First Hospital of Nanjing, China. The aim was to investigate the incidence of loss of contact between implant restorations and adjacent teeth and its influencing factors. Our findings may provide better insights for treatment planning and prevention of PCL.
Detailed Description
Food impaction is a common complication after implant-supported restorations. Several studies have reported that more than 40%-66.9% of patients feel food impaction between the implant restoration and adjacent natural teeth. The most common cause of food impaction after implant restoration is the proximal contact loss(PCL), which has been reported to occur in 34% to 65% of cases. The location of PCL creates discomfort and leads to gingival inflammation and even peri-implant bone resorption, which ultimately leads to loosening of the implant. In our long-term clinical observation, not all final restorations suffer from PCL. The occurrence of PCL may be related to a number of factors such as age, gender, functional time, and so on. However, the literature addressing this issue is still limited. In this study, we collected and analysed the review results of selected patients who underwent implant-supported restorations in the First Hospital of Nanjing, China, to investigate the incidence of PCL between the implant restorations and the adjacent teeth adjacent , and the factors influencing it. Our findings may provide better insights for treatment planning and prevention of PCL.
Study Design
- Study Type
- Observational
- Observational Model
- Case Only
- Time Perspective
- Cross Sectional
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •(1) Patients over the age of 18, can fully understand the nature of the proposed and be able to sign a consent form.
- •(2) patients who underwent dental implant surgery and delivered prostheses for more than 3 months in Nanjing First Hospital.
Exclusion Criteria
- •(1) The implant site or adjacent teeth were severely injured and the adjacent teeth were extracted;
- •(2) the same quadrant orthodontic or splint treatment;
- •(3) the prostheses have been removed due to failure or need further treatment;
- •(4) implant-supported prostheses in both mesial and distal sites;
- •(5) the adjacent teeth were directly or indirectly fixed with the implant-supported prosthesis;
- •(6) patients with missing clinical records of PD, PCR and BOP.
- •(7) The prosthetic prosthesis with implant-supported prosthesis was delivered for less than 3 months in Nanjing First Hospital.
Outcomes
Primary Outcomes
the proximal contact surface was adjusted by a dental floss (Reach waxed dental floss from Johnson & Johnson, standard thickness)
Time Frame: Patients with implant-supported prostheses reviewed 3 months after delivery were eligible for inclusion in this study.
The degree of proximal contact loss(PCL) was evaluated with a dental floss passing through the contact areas and classified as: (a) tight: sufficient resistance to the passage of the floss; (b) loose: insufficient resistance to the passage of the floss; and (c) open: contact: no resistance to the passage of the floss. The presence of an open or loose contact was classified as PCL.
Secondary Outcomes
- oral panoramic radiograph(Patients with implant-supported prostheses reviewed 3 months after delivery were eligible for inclusion in this study.)
- Bausch Arti-Fol R metallic Shimstock-Film(Patients with implant-supported prostheses reviewed 3 months after delivery were eligible for inclusion in this study.)