Skip to content

The effect of mechanical vibration (Acceledent) on root resorption and the rate of tooth movement after application of orthodontic force. A micro-CT study.

Patients with crowded malocclusion requiring extraction of upper first premolar teeth as part of their orthodontic treatment will have Acceledent used on one side to compare the amount of root resorption and rate of tooth movement caused by orthodontic appliances.

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12610001067066
Enrollment
20
Registered
2010-12-03
Start date
2011-03-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Purpose of this study is to test whether the Acceledent device will decrease the amount of tooth root resorption caused by light buccally directed forces from partial braces for 4 weeks. The Acceledent's purpose is to accelerate tooth movement. The 2nd phase of the study will determine if space closure after tooth extraction is faster than if no Acceledent is used.

Interventions

Patients requiring upper 1st premolar extractions will have partial braces placed on the upper teeth to produce a buccally directed force on the upper 1st premolar teeth for 4 weeks. Acceledent is a new extraoral device that emits a low vibration force onto an attached mouthpiece. The mouth piece will be cut into half so that when placed in the mouth, only 1 side will feel the vibration force. During these 4 weeks, the patients will use Acceledent on one side only (randomly assigned) for 10 mins

Patients requiring upper 1st premolar extractions will have partial braces placed on the upper teeth to produce a buccally directed force on the upper 1st premolar teeth for 4 weeks. Acceledent is a new extraoral device that emits a low vibration force onto an attached mouthpiece. The mouth piece will be cut into half so that when placed in the mouth, only 1 side will feel the vibration force. During these 4 weeks, the patients will use Acceledent on one side only (randomly assigned) for 10 mins per day. After 4 weeks the upper first premolar teeth will be extracted and analysed with Micro CT for root resorption craters. After extraction of the upper premolar teeth, full braces will be placed on the patient's teeth as part of their normal orthodontic treatment. Acceledent will continue to be used on one side to measure the rate of tooth movement with clinical measurements every 14 days and impression moulds every 28 days. The estimated measurement time for the rate of tooth movement is 3 months.

Sponsors

Australian Society of Orthodontists
Lead SponsorCharities/Societies/Foundations

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
12 Years to 25 Years
Healthy volunteers
Yes

Inclusion criteria

1. Need for bilateral upper first premolar extractions and fixed appliance orthodontic treatment; 2. Permanent Dentition; 3. No previous orthodontic or orthopaedic treatment; 4. No craniofacial anomaly present; 5. No previous reported or observed dental treatment of the maxillary canines; 6. No history of trauma, bruxism or parafunction; 7. No past and present signs and symptoms of periodontal disease; 8. No significant medical history or medication that would adversely affect the development or structure of the teeth and jaws and any subsequent tooth movement.

Exclusion criteria

1. Medically compromised patients 2. Patients with a history of poor compliance 3. Patients with active dental or gum disease 4. patients with poor oral hygiene 5. Patients that do not wish to volunteer for the study

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026