A comparison of Class II open bite correction by maxillary or mandibular surgery

Torgersbråten, Nina; Stenvik, Arild; Espeland, Lisen

doi:10.1016/j.ajodo.2019.05.018

Cited by 10 publications

(4 citation statements)

References 32 publications

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“…Anterior facial height decreased in the Le Fort I subsample and increased in the bilateral sagittal split osteotomy subsample, and the mandibular plane angle decreased in both. The Le Fort I subsample generally remained stable, while clinically significant relapse of the mandibular plane angle (≥2°) occurred in 80% of the bilateral sagittal split osteotomy subsample [19]. Also, a study quantified the three-dimensional condylar displacement due to bimaxillary surgery for open bite correction in patients with class II and class III skeletal malocclusion.…”

Section: Major Clinical Resultsmentioning

confidence: 99%

Main clinical approaches to orthognathic surgery for class II open bite and genioplasty patients: a brief systematic review

Oliveira¹,

Sánchez²,

Braga³

et al. 2022

MedNEXT

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Introduction: Orthognathic surgery (OS) is used to improve the patient's facial appearance and to correct maxillary and mandibular deformities resulting from malocclusions, disease, or trauma. In this context, genioplasty is a procedure to correct an aesthetic and functional deformity of the chin region, improving the contour. Moreover, anterior open bite (AOB) is the lack of vertical contact or negative overbite between the anterior teeth of the superior and inferior arches when the posterior teeth are in occlusion. Objective: The present study aimed to perform a brief systematic review with risk of bias analysis by funnel plot to highlight the main clinical approaches of orthognathic surgery in class II patients with open bites and also concerning genioplasty. Methods: The research was carried out from February 2022 to May 2022 and developed based on Scopus, PubMed, Science Direct, Scielo, and Google Scholar. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 115 articles were found. In total, 57 articles were fully evaluated and 34 were included and evaluated in this study. And of the total of 34 articles, only 11 articles were developed as the main clinical results. A total of 32 articles were excluded because they did not meet the GRADE classification, and 16 were excluded because they were at risk of bias. The symmetric funnel plot does not suggest a risk of bias between the small sample size studies. A retrospective observational study compared 57 patient charts on treatment outcomes for anterior occlusion and vertical skeletal stability after maxillary or mandibular surgery to correct Class II malocclusion with a mild to moderate open bite. After surgery, 87% of Le Fort I patients and 63% of patients with bilateral sagittal split osteotomy had a positive overbite, and at the 6-month follow-up, the percentages were 90% and 74%, respectively. Another study showed Class II patients had significantly greater amounts of lateral and lower translation than class III patients. Also, genioplasty represents one of the most common auxiliary procedures and may be associated with corrective surgery for dentofacial dysmorphisms. However, care must be taken with mental nerve injuries, asymmetries, and intraoperative bleeding are the main immediate complications.

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Section: Major Clinical Resultsmentioning

confidence: 99%

Main clinical approaches to orthognathic surgery for class II open bite and genioplasty patients: a brief systematic review

Oliveira¹,

Sánchez²,

Braga³

et al. 2022

MedNEXT

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Section: Mednext Journal Of Medical and Health Sciencesmentioning

confidence: 91%

Highlights of orthognathic surgery in class II patients: a systematic review

Ferreira,

Estêvão,

Lombardi

et al. 2024

MedNEXT

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Introduction: Orthognathic surgery is indicated to modify the position of the maxillomandibular structure, which may cause changes in the sagittal position of the mandibular condyle in individuals with retrognathism and mandibular prognathism. In the context of orthognathic surgery, anterior open bite (AOB) is an easily recognized malocclusion and presents only aesthetic and functional problems. Objective: Foi desenvolver uma revisão sistemática para apresentar as principais considerações da cirurgia ortognática em pacientes classe II. Methods: The PRISMA Platform systematic review rules were followed. The search was carried out from October to December 2023 in the Scopus, PubMed, Science Direct, Scielo, and Google Scholar databases. The quality of the studies was based on the GRADE instrument and the risk of bias was analyzed according to the Cochrane instrument. Results and Conclusion: A total of 88 articles were found, 40 articles were evaluated in full and 20 were included and developed in the present systematic review study. Considering the Cochrane tool for risk of bias, the overall assessment resulted in 21 studies with a high risk of bias and 21 studies that did not meet GRADE and AMSTAR-2. Most studies did not show homogeneity in their results, with X2=57.5%>50%. The etiology of anterior open bite is multifactorial and may be caused by environmental and hereditary factors. Class II patients may have significantly greater amounts of lateral and inferior translation than class III patients. Two-jaw surgery for open bite correction led to different directions and amounts of condylar rotational displacement in patients with skeletal class II malocclusion. Treatment can be carried out through preventive, interceptive, corrective, or even surgical treatments. The differentiated bonding of brackets to the anterior teeth is also a very useful resource for the treatment of anterior open bite.

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“…[1] On average, there are greater improvements and stability after maxillary surgery than mandibular. [5] Significant relapse in the open bite is found in non-extraction treatments, contrasting with non-significant relapse occurring in extraction cases. [6] e applications of titanium mini plates for skeletal anchorage were spread to the intrusion of posterior teeth in severe cases of open bite.…”

Section: Introductionmentioning

confidence: 99%

Class II and anterior open bite malocclusion treated with mini-implants, intermaxillary elastics, speech therapy, and retained with a night-wear palatal crib wraparound

Martinelli

2023

APOS

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The teeth position in anterior open bite malocclusion depends on a balance of pressure between the tongue and lips and the treatment planning should include such variables. The objective of this study was to report an orthodontic case of an adult with maxillary protrusion and anterior open bite treated with skeletal anchorage and intermaxillary elastics. The patient presented a Class II malocclusion with anterior open bite, without a history of non-nutritive habits, and mandibular missing teeth at 54 years old. Mini-implants were inserted in the maxillary molars region to produce distal movement of the maxillary dentition while controlling molar extrusion, and in the mandibular anterior region on the left side to produce mesial movement of posterior teeth. Up and down intermaxillary elastics were worn in the area of the incisors to treat the open bite together with Class II intermaxillary elastics. Cleats were bonded in the lingual surface of the anterior teeth as spurs to the tongue posture. However, the best result on the anterior open bite treatment was coincident with the speech therapy. Normal relationships between the maxillary and mandibular occlusal plane of cusps, correct anterior overbite, and adequate proximal relationships were obtained at the end of treatment. The retention modality to the maxillary arch was daily wear of a removable standard wraparound and a night-time wraparound with the palatal crib. The new technology allows for more effective treatment in adults and speech therapy was helpful to achieve balanced pressure between the tongue and lips.

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A comparison of Class II open bite correction by maxillary or mandibular surgery

Cited by 10 publications

References 32 publications

Main clinical approaches to orthognathic surgery for class II open bite and genioplasty patients: a brief systematic review

Main clinical approaches to orthognathic surgery for class II open bite and genioplasty patients: a brief systematic review

Highlights of orthognathic surgery in class II patients: a systematic review

Class II and anterior open bite malocclusion treated with mini-implants, intermaxillary elastics, speech therapy, and retained with a night-wear palatal crib wraparound

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