N/A N=6 Randomized Single-blind Treatment

Temporary Anchorage Devices for Ridge Preservation

Ridge Preservation

Bottom Line

View on ClinicalTrials.gov: NCT03205800 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

Feb 2025

Primary outcome: Primary: Changes in Width of Extraction Site (Ridge) — 0.7; 1.3 mm — p=<0.05

Study Design & Population

Study type: Interventional
Phase: N/A
Interventions: Mini-screw (Device)
Age: Adult, Older Adult · 18+ yrs
Sex: All
Sponsor: University of Maryland, Baltimore
Primary completion: Nov 2020

Outcome Measures

Outcome	Result	p-value
PRIMARY Changes in Width of Extraction Site (Ridge)	0.7; 1.3	<0.05 sig

Summary

Alveolar bone is a bony portion surrounding the root of a tooth. The alveolar bone disappears gradually when the tooth is extracted. This bone loss often becomes a problem if a patient wants to close the missing tooth space with orthodontic treatments (braces), or to get a dental implant (a metal post replacing a tooth). Therefore, we would like to place small screws at the extraction sites to preserve the alveolar bone when the teeth need to be extracted and a patient cannot start treatments some time. Mini-screws (small metal screws) are routinely used for regular orthodontic treatment. We will recruit patients who require extractions of two upper small molars (maxillary premolars) on both right and left sides. We will place one mini-screw on one side while the other side will be untouched after teeth extractions. Both sides will be followed at 8 months for examinations.

Eligibility Criteria

Inclusion Criteria

age ≥ 18 years
two maxillary premolars (left and right) required to be extracted based on recommended dental treatment plans

Exclusion Criteria

uncontrolled hypertension
diabetes mellitus
subjects with a history of a long-term use of corticosteroid (> 6 months)
subjects with a history of taking oral/IV bisphosphonates within the past 2 years
smokers

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Data sourced from ClinicalTrials.gov (NCT03205800). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.