Loss of single posterior tooth
Conditions
Interventions
Experimental group:Placement of 3D-printed zirconia healing abutment
Sponsors
Shanghai Stomatological Hospital, Fudan University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1.Single-tooth loss in the posterior region was scheduled for implant-supported rehabilitation. Cone-beam computed tomography (CBCT) evaluation revealed adequate bone quantity and quality at the intended implant site, allowing placement of standard-diameter implants without additional bone augmentation procedures such as guided bone regeneration (GBR). 2.Patients presented with remaining natural teeth (especially anterior teeth and adjacent teeth) free of obvious black interdental triangles, with complete filling of the interdental papilla beneath contact points. 3.Oral hygiene and treatment compliance: Patients shall present satisfactory oral hygiene with a plaque index of <=1. They are capable and willing to maintain optimal oral hygiene and commit to completing all scheduled follow-up visits. 4.Informed Consent: Subjects voluntarily participate in this study, fully understand the research protocol, and sign the written informed consent form. 5. Age and Health Status: Aged 18-65, with an American Society of Anesthesiologists (ASA) classification of I or II, in good overall health, and capable of withstanding conventional dental implant surgery.
Exclusion criteria
Exclusion criteria: 1.Systemic Diseases: Patients with uncontrolled systemic disorders, including uncontrolled diabetes mellitus (glycated hemoglobin, HbA1c > 7.5%), osteoporosis, immunodeficiency diseases, coagulation disorders, or malignant tumors. 2.Adverse Habits and Medical History: Heavy smokers with a daily cigarette consumption of more than 10 cigarettes; patients with a history of head and neck radiotherapy; subjects receiving or having previously received intravenous bisphosphonate therapy. 3.Local Oral Conditions: Presence of untreated periodontitis or peri-implantitis; severe bruxism or clenching habits; acute infection or inflammation within the edentulous site; severe occlusal disharmony. 4.Special Physiological Status: Pregnant or lactating women. 5.Allergy History: Subjects with known hypersensitivity to titanium, zirconia, or other materials involved in this research. 6.Other Exclusion Criteria: Subjects with psychiatric or psychological disorders that render them unable to cooperate with treatment and follow-up assessments; any other conditions judged by the investigators to render participants ineligible for enrollment in this trial.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Gingival papilla filling ratio; | — |
Secondary
| Measure | Time frame |
|---|---|
| Patient satisfaction;Modified Bleeding Index,MBI;Modified Plaque Index, MPIL; | — |
Countries
China
Contacts
Public ContactWu Yuqiong
Shanghai Stomatological Hospital, Fudan University
Outcome results
None listed