Orthodontic correction of anterior openbite has conventionally involved extraction therapy or an adjunctive maxillary impaction osteotomy. However, bone anchored molar intrusion treatments have been reported in recent years as a less invasive alternative for such patients. This paper describes the concepts and treatment processes involved with mini-implant molar intrusion to correct anterior openbite and reduce patients’ excessive vertical facial proportions.
AkanS, KocadereliI, AktasA, TasarF.Effects of maxillary molar intrusion with zygomatic anchorage on the stomatognathic system in anterior open bite patients. Eur J Orthod2013; 35: 93–102.
2.
AntoszewskaJ, PapadopoulosMA, ParkHS, LudwigB.Five-year experience with orthodontic miniscrew implants: a retrospective investigation of factors influencing success rates. Am J Orthod Dentofac Orthop2009; 136: 158e1–158e10.
3.
BaekM, ChoiY, YuH, LeeK, KwakJ, ParkY.Long-term stability of anterior open-bite treatment by intrusion of maxillary posterior teeth. Am J Orthod Dentofac Orthop2010; 138: 396e1–396e9.
4.
BuschangPH, CarrilloR, RossouwPE. Orthopedic correction of growing hyperdivergent, retrognathic patients with miniscrew implants. J Oral Maxillofac Surg2011; 69: 754–762.
5.
CarrilloR, RossouwPE, FrancoPF, OppermanLA, BuschangPH. Intrusion of multiradicular teeth and related root resorption with mini-screw implant anchorage: a radiographic evaluation. Am J Orthod Dentofac Orthop2007; 132: 647–655.
6.
CousleyRR. A clinical strategy for maxillary molar intrusion using orthodontic mini-implants and a customised palatal arch. J Orthod2010; 37: 197–203.
7.
CousleyRR. Intrusion and anterior openbite treatments. In The Orthodontic Mini-implant Clinical Handbook. Chichester: Wiley-Blackwell, 2013. pp. 99–122.
8.
DaimaruyaT, TakahashiI, NagasakaH, UmemoriM, SugawaraJ, MitaniH.Effects of maxillary molar intrusion on the nasal floor and tooth root using the skeletal anchorage system in dogs. Angle Orthod2003; 73: 158–166.
9.
DeguchiT, KurosakaH, OikawaH, KurodaS, TakahashiI, YamashiroT.Comparison of orthodontic treatment outcomes in adults with skeletal open bite between conventional edgewise treatment and implant-anchored orthodontics. Am J Orthod Dentofac Orthop2011; 139: S60–S68.
10.
GkantidisN, HalazonetisD, AlexandropoulosE, HaralabakisNB. Treatment strategies for patients with hyperdivergent Class II Division 1 malocclusion: is vertical dimension affected?Am J Orthod Dentofac Orthop2011; 140: 346–355.
11.
HartTR, CousleyRR, FishmanLS, TallentsRH. Dentoskeletal changes following mini-implant molar intrusion in anterior open bite patients. Unpublished data.
12.
HoppenreijsTJ, FreihoferHP, StoelingaPJ, TuinzingDB, van't HofMA, van der LindenFP. Skeletal and dento-alveolar stability of Le Fort I intrusion osteotomies and bimaxillary osteotomies in anterior open bite deformities. Oral Maxillofac Surg1997; 26: 161–175.
13.
IbitayoAO, Pangrazio-KulbershV, BergerJ, BayirliB.Dentoskeletal effects of functional appliances vs bimaxillary surgery in hyperdivergent Class II patients. Angle Orthod2011; 81: 304–311.
14.
JansonG, ValarelliFP, BeltrãoRT, de FreitasMR, HenriquesJF. Stability of anterior open-bite extraction and nonextraction treatment in the permanent dentition. Am J Orthod Dentofac Orthop2006; 129: 768–774.
15.
JensonU, RufS.Success rate of anterior open-bite orthodontic–orthognathic surgical treatment. Am J Orthod Dentofac Orthop2010; 138: 716–719.
16.
KanzakiR, DaimaruyaT, TakahashiI, MitaniH, SugawaraJ.Remodeling of alveolar bone crest after molar intrusion with skeletal anchorage system in dogs. Am J Orthod Dentofac Orthop2007; 131: 343–351.
17.
KurodaS, SakiY, TamamuraN, DeguchiT, Takano-YamamotoT.Treatment of severe anterior open bite with skeletal anchorage in adults: comparison with orthognathic surgery outcomes. Am J Orthod Dentofac Orthop2007; 132: 599–605.
18.
LeeHA, ParkYC. Treatment and posttreatment changes following maxillary posterior teeth with miniscrew implants for open-bite correction. Korean J Orthod2008; 38: 31–40.
19.
MaiaFA, JansonG, BarrosSE, MaiaNG, ChiquetoK, NakamuraAY. Long-term stability of surgical-orthodontic open-bite correction. Am J Orthod Dentofac Orthop2010; 138: 254e1–254e10.
20.
MoonC, ParkH, NamJ, ImJ, BaekS.Relationship between vertical skeletal pattern and success rate of orthodontic mini-implants. Am J Orthod Dentofac Orthop2010: 138: 51–57.
21.
Ramirez-EchaveJI, BuschangPH, CarrilloR, RossouwPE, NagyWW, OppermanLA. Histological evaluation of root response to intrusion in mandibular in beagle dogs. Am J Orthod Dentofac Orthop2011; 139: 60–69.
22.
TeittinenM, TuovinenV, TammelaL, SchatzleM, PeltomakiT.Long-term stability of anterior open bite closure corrected by surgical–orthodontic treatment. Eur J Orthod2012; 34: 238–243.