dental caries, missing tooth
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Patients must have visited each dental clinic during the study recruitment period and at least 10 years must have passed since the date of their first visit at that time. 2.The patient must have received restorative or prosthetic crown treatment at the respective dentist's practice. 3.The participant's informed consent must have been obtained verbally.
Exclusion criteria
Exclusion criteria: 1.Participants must not have been a patient for more than 10 years after the initial visit. 2.minor 3.Patients with no history of restorative treatment at the collaborating institution 4.Record only the first treatment case by treatment method and exclude the second and subsequent cases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Event occurrence. An event in this study refers to the need for re-treatment (including replacement, repair and extraction) due to caries, fracture, or dislodgement. | — |
Countries
Japan
Contacts
Nagasaki University School of Dentistry Department of Prosthetic Dentistry