Partially edentulous arches
Conditions
Interventions
natural tooth monolithic zirconia crown/natural tooth group:None
natural tooth monolithic zirconia crown/natural tooth 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 unilateral posterior tooth is about to receive or having been completed a full zirconia single crown restoration within 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 having been restored with a full zirconium single crown. c) The adjacent teeth, the corresponding tooth 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 tooth has normal pulpal vitality prior to crown restoration or has undergone root canal treatment without percussion pain. 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 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 |
|---|---|
| relative occlusal force;occlusion contact time; | — |
Secondary
| Measure | Time frame |
|---|---|
| wear volume;maximum wear depth ;alveolar bone loss; | — |
Countries
China
Contacts
Public ContactFang Ming
School of Stomatology, The Fourth Military Medical University
Outcome results
None listed