IADR Abstract Archives
Miniplates Versus Miniscrew Anchorage with Fixed Functional Appliances: Randomized Controlled Trial
Objectives: To detect the 3 dimensional skeletal, dental and soft tissue effects of the miniplates and mini-screw anchored Forsus Fatigue Resistant Device (FFRD).
Methods: A sample of 67 skeletal Class II growing females with deficient mandibles were randomly allocated into 4 groups; 15 subjects received FFRD and miniplates for direct anchorage of the appliance (FMP group), 17 received mini-screws for indirect anchoring of FFRD (FMI group), 17 subjects received FFRD only (F group) & 18 were untreated controls. CBCT images were taken before appliance insertion & after removal.
Results: Overjet correction occurred in all cases. Significant mandibular lengthening and a slight headgear effect were found in the FMP group. Maxillary dento-alveolar retrusion was most evident in the FMI group. Lower incisors were significantly proclined in the F and FMI groups. Soft tissue parameters were improved in all groups
Conclusions: Direct miniplate anchorage was able to enhance the mandibular lengthening in the short term. Unfavorable lower incisors proclination & intrusion were effectively reduced with the mini implants and eliminated with the miniplates.
Methods: A sample of 67 skeletal Class II growing females with deficient mandibles were randomly allocated into 4 groups; 15 subjects received FFRD and miniplates for direct anchorage of the appliance (FMP group), 17 received mini-screws for indirect anchoring of FFRD (FMI group), 17 subjects received FFRD only (F group) & 18 were untreated controls. CBCT images were taken before appliance insertion & after removal.
Results: Overjet correction occurred in all cases. Significant mandibular lengthening and a slight headgear effect were found in the FMP group. Maxillary dento-alveolar retrusion was most evident in the FMI group. Lower incisors were significantly proclined in the F and FMI groups. Soft tissue parameters were improved in all groups
Conclusions: Direct miniplate anchorage was able to enhance the mandibular lengthening in the short term. Unfavorable lower incisors proclination & intrusion were effectively reduced with the mini implants and eliminated with the miniplates.