K03.3
Conditions
Interventions
Group 1: Patients who underwent microsurgical treatment for external cervical root resorption following a standardized protocol between January 2013 and December 2024. Clinical treatment data will be
Sponsors
Hürzeler/Zuhr Praxis
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: • Diagnosis of ECR • Prior microsurgical treatment of ECR following the standardized treatment protocol • Medically healthy (ASA classification I-II) • Availability of sufficient pre- and post-treatment clinical records and radiographs (periapical radiograph or LFOV CBCT) • Written informed consent for study participation
Exclusion criteria
Exclusion criteria: Patients meeting any of the following exclusion criteria will not be included in the study: • Incomplete pre- and post-treatment clinical or radiographic data • History of systemic conditions impairing bone healing (e.g., head and neck radiation therapy, bisphosphonate-related osteonecrosis) at the time of treatment or during follow-up • Restorative or prosthetic treatment of the treated tooth performed during the follow-up period • No written informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Assessment of treatment success, defined as: • Tooth survival during the follow-up period • No further progression of resorption clinically or radiographically • Absence of clinical signs of inflammation, including Bleeding on probing (BOP), Suppuration on probing (SUP), Periodontal probing depth (PPD) = 5mm, pain, swelling, or fistula formation Radiographic assessment of resorption lesion, including: • No further increase in lesion size on follow-up radiographs (periapical radiograph or limited field of view CBCT (LFOV CBCT)) • Stable bone levels in the affected area | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Analysis of potential factors influencing treatment outcomes, such as: • Patient-related factors (e.g., age, sex, medical history) • Lesion-specific characteristics (e.g., localization) • Presence of predisposing conditions (e.g., history of trauma, orthodontic treatment, internal bleaching, etc.) 2. Evaluation of treatment stability over time, based on follow-up duration and recurrence rates 3. Assessment of Patient-Reported Outcome Measures (PROMs) - including subjective symptoms such as post-treatment pain or discomfort, willingness to undergo treatment again, if ever needed | — |
Countries
Germany
Contacts
Public ContactOtto Zuhr
Hürzeler/Zuhr Praxis
Outcome results
None listed