Periodontal Tissue Stability After Surgical Correction of Altered Passive Eruption
ConditionAltered Passive Eruption
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Sao Paulo
About this trial
This prospective, single-group interventional study will evaluate the stability of periodontal tissues after esthetic periodontal surgery for the correction of altered passive eruption in individuals with excessive gingival display. Ten adult participants with excessive gingival display associated with altered passive eruption and involvement of the alveolar bone will be included.
Participants will undergo esthetic crown-lengthening surgery consisting of gingivectomy and osseous recontouring. Periodontal clinical measurements, intraoral digital scans, cone-beam computed tomography, standardized photographs, and patient-reported outcomes will be obtained before surgery and during follow-up. Clinical and three-dimensional tissue changes, esthetic perception, satisfaction, and oral health-related quality of life will be evaluated for up to 12 months after treatment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults with an esthetic complaint related to excessive gingival display.
Diagnosis of altered passive eruption as one of the etiologic factors associated with excessive gingival display.
Altered passive eruption involving the alveolar bone.
Disqualifiers
Current orthodontic treatment.
Active periodontal disease.
Systemic conditions that contraindicate periodontal surgical procedures, including uncontrolled autoimmune diseases.
Use of medications that may interfere with the inflammatory response or wound healing, including corticosteroids or immunosuppressive agents.
Trial design
Design model
Single group
Treatments tested in this trial
Esthetic Crown-Lengthening Surgery
Procedure/SurgeryEsthetic periodontal surgery will be performed to correct altered passive eruption. Gingival tissue will be removed by an internal bevel gingivectomy. Osseous recontouring will then be performed to establish an adequate relationship between the cementoenamel junction and the alveolar bone crest. Depending on the periodontal phenotype and anatomical characteristics, osseous recontouring may be performed with or without flap elevation.
Treatment groups
10 Participants
are divided into 1 treatment groupGroup A: Esthetic Crown-Lengthening SurgeryExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Mean Change From Baseline in Clinical Crown Length
Clinical crown length will be recorded in millimeters. The mean change from baseline will be calculated at each postoperative assessment to evaluate the stability of the surgical outcome over time.
Time frame
Baseline, 2 weeks, 3 months, 6 months, and 12 months after surgerySecondary outcomes
1
Mean Change From Baseline in the Distance Between the Cementoenamel Junction and Alveolar Bone Crest
The distance between the cementoenamel junction and the alveolar bone crest will be measured in millimeters using cone-beam computed tomography to evaluate postoperative periodontal tissue remodeling.
Time frame
Baseline, 3 months, 6 months, and 12 months after surgery2
Mean Change From Baseline in Gingival Thickness
Gingival thickness will be measured in millimeters using cone-beam computed tomography to evaluate changes in periodontal soft-tissue dimensions after surgery.
Time frame
Baseline, 3 months, 6 months, and 12 months after surgery3
Mean Change From Baseline in Alveolar Bone Thickness
Alveolar bone thickness will be measured in millimeters using cone-beam computed tomography to evaluate bone remodeling after esthetic crown-lengthening surgery.
Time frame
Baseline, 3 months, 6 months, and 12 months after surgery4
Three-Dimensional Change in Gingival Soft Tissues
Intraoral digital scans obtained at follow-up visits will be compared with baseline digital models to assess three-dimensional changes in gingival morphology and soft-tissue stability.
Time frame
Baseline, 3 months, 6 months, and 12 months after surgerySponsors and contacts
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Source ClinicalTrials.gov