Partially edentulous arches
Conditions
Interventions
Implant-supported monolithic zirconia crown/ Implant-supported monolithic zirconia crown group:None
Sponsors
School of Stomatology, The Fourth Military Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: a) The implant has been placed in a unilateral posterior region; the position of the implant is satisfactory; no bone grafting procedure has been performed and an implant-supported full zirconia single crown restoration is about to be placed or has been placed for less than 2 weeks (the adjacent tooth is a natural tooth whose crown is almost intact and there is no obvious abnormality in the axial direction and position of the crown). b) The full zirconia single crown opposes to a natural tooth without large fillings, or a tooth-supported/implant-supported full zirconia single crown having been placed/about to be placed. c) The adjacent teeth, the corresponding teeth on the contralateral side and their opposing teeth are natural teeth without large fillings and crown restorations. d) The patient is between 18 and 70 years old without gender restrictions. e) There are no obvious abnormalities on occlusal examination (no premature contact or occlusal interference) and the bilateral posterior teeth have stable occlusal contacts. f) The implanted-supported single crown was examined with 12 micron occlusal paper at the time of initial insertion with no contact at a light bite or lateral bite, and a light contact at a heavy bite. g) The patient agreed to participate in this study and signed an informed consent form.
Exclusion criteria
Exclusion criteria: a) Patients who are unable to cooperate with treatment, regular follow-up or imaging examination. b) Presence of restricted mouth opening or muscular, skeletal, joint disorders of the stomatognathic system affecting jaw movement. c) A history of moderate to severe periodontitis or peri-implant disease, or being in an unstable periodontal status. d) Presence of severe malocclusion. e) Use of steroids or bisphosphonates. f) Patients who have a physical disability or mental illness interfering with oral hygiene maintenance. g) Presence of oral parafunction or other factors clearly contributing to tooth wear, such as unilateral chewing. h) Occlusal adjustment of natural teeth, resin filling of occlusal surface involving the cusp, full crown restoration, orthodontic treatment, implant treatment or extraction has been performed during the follow-up visit.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| occlusion contact time;relative occlusal force; | — |
Secondary
| Measure | Time frame |
|---|---|
| wear volume;maximum wear depth;occlusion contact area;marginal bone loss; | — |
Countries
China
Contacts
Public ContactFang Ming
School of Stomatology, The Fourth Military Medical University
Outcome results
None listed