scholarly journals Combination approach for treatment of mandibular prognathism: Bilateral saggital split osteotomy with pre & post surgical orthodontics

2021 ◽  
Vol 7 (3) ◽  
pp. 261-266
Author(s):  
Gaurav Gupta ◽  
Dinesh Kumar Gupta ◽  
Priyanka Gupta ◽  
Neelja Gupta
Keyword(s):  
Treatment Planning ◽  
Orthognathic Surgery ◽  
Treatment Modalities ◽  
Mandibular Prognathism ◽  
Skeletal Class ◽  
Dentofacial Deformities ◽  
Satisfactory Outcome ◽  
Bona Fide ◽  
To Come ◽  
Combination Approach

Various features of a human face collated in different ratios produce a distinct smile and esthetics. Any deflection from the accepted facial development and symmetry brings about vexatious facial appearance, depression and diffidence of patient. So a compendious smile designing is imperfect without scrutinizing the dentofacial features. Tremendous progress in the surgical discipline has made it possible to treat the major dentofacial deformities successfully, for whom orthodontic camouflage and growth modification would have resulted in unstable and displeasing results. Orthognathic surgery is the art and science of diagnosis, treatment planning and implementation of treatment to correct musculoskeletal, dentoosseous and soft tissue deformities of the jaws and orofacial appratus. With bona fide diagnosis and treatment planning, pleasing smile and functionally stable results can be obtained in skeletal class 3 malocclusion. Orthognathic surgery should be flawlessly integrated with orthodontics and other dental treatments to achieve satisfactory outcome. In orthognathic correction of skeletal discrepancies, various treatment modalities should be considered to come up with adequate outcome and least trauma to patient. Due to the meticulous advancement in recent decades, combined approach of orthognathic surgery and orthodontic treatment has been rewarded for severe dentofacial deformities. We are presenting here a case of skeletal class 3 malocclusion with symmetrical mandibular prognathism treated with combination approach.

scholarly journals Alteration of Occlusal Plane in Orthognathic Surgery: Clinical Features to Help Treatment Planning on Class III Patients

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Daniel Amaral Alves Marlière ◽  
Tony Eduardo Costa ◽  
Saulo de Matos Barbosa ◽  
Rodrigo Alvitos Pereira ◽  
Henrique Duque de Miranda Chaves Netto
Keyword(s):  
Treatment Planning ◽  
Clinical Features ◽  
Orthognathic Surgery ◽  
Occlusal Plane ◽  
Definitive Treatment ◽  
Class Iii ◽  
Lower Lip ◽  
Dentofacial Deformities ◽  
Bimaxillary Orthognathic Surgery ◽  
Nasolabial Folds

Dentofacial deformities (DFD) presenting mainly as Class III malocclusions that require orthognathic surgery as a part of definitive treatment. Class III patients can have obvious signs such as increasing the chin projection and chin throat length, nasolabial folds, reverse overjet, and lack of upper lip support. However, Class III patients can present different facial patterns depending on the angulation of occlusal plane (OP), and only bite correction does not always lead to the improvement of the facial esthetic. We described two Class III patients with different clinical features and inclination of OP and had undergone different treatment planning based on 6 clinical features: (I) facial type; (II) upper incisor display at rest; (III) dental and gingival display on smile; (IV) soft tissue support; (V) chin projection; and (VI) lower lip projection. These patients were submitted to orthognathic surgery with different treatment plannings: a clockwise rotation and counterclockwise rotation of OP according to their facial features. The clinical features and OP inclination helped to define treatment planning by clockwise and counterclockwise rotations of the maxillomandibular complex, and two patients undergone to bimaxillary orthognathic surgery showed harmonic outcomes and stables after 2 years of follow-up.

scholarly journals Numbers of Beauty: An Innovative Aesthetic Analysis for Orthognathic Surgery Treatment Planning

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Tito Matteo Marianetti ◽  
Giulio Gasparini ◽  
Giulia Midulla ◽  
Cristina Grippaudo ◽  
Roberto Deli ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Reference Values ◽  
Orthognathic Surgery ◽  
Soft Tissues ◽  
Reference Group ◽  
Cephalometric Analysis ◽  
Class Iii ◽  
Skeletal Class ◽  
Ideal Group ◽  
The Ideal

The aim of this study was to validate a new aesthetic analysis and establish the sagittal position of the maxilla on an ideal group of reference. We want to demonstrate the usefulness of these findings in the treatment planning of patients undergoing orthognathic surgery. We took a reference group of 81 Italian women participating in a national beauty contest in 2011 on which we performed Arnett’s soft tissues cephalometric analysis and our new “Vertical Planning Line” analysis. We used the ideal values to elaborate the surgical treatment planning of a second group of 60 consecutive female patients affected by skeletal class III malocclusion. Finally we compared both pre- and postoperative pictures with the reference values of the ideal group. The ideal group of reference does not perfectly fit in Arnett’s proposed norms. From the descriptive statistical comparison of the patients’ values before and after orthognathic surgery with the reference values we observed how all parameters considered got closer to the ideal population. We consider our “Vertical Planning Line” a useful help for orthodontist and surgeon in the treatment planning of patients with skeletal malocclusions, in combination with the clinical facial examination and the classical cephalometric analysis of bone structures.

Changes in occlusal function after orthognathic surgery in mandibular prognathism with and without asymmetry

2015 ◽  
Vol 44 (8) ◽  
pp. 971-976 ◽  
Author(s):  
A. Moroi ◽  
Y. Ishihara ◽  
M. Sotobori ◽  
R. Iguchi ◽  
A. Kosaka ◽  
...  
Keyword(s):  
Orthognathic Surgery ◽  
Mandibular Prognathism

scholarly journals Current Understanding of Novel Coronavirus: Molecular Pathogenesis, Diagnosis, and Treatment Approaches

Immuno ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 30-66
Author(s):  
Niraj Kumar Jha ◽  
Madhan Jeyaraman ◽  
Mahesh Rachamalla ◽  
Shreesh Ojha ◽  
Kamal Dua ◽  
...  
Keyword(s):  
Paradigm Shift ◽  
Functional Outcomes ◽  
Cellular Therapy ◽  
Treatment Modalities ◽  
Unknown Etiology ◽  
Huge Number ◽  
The World ◽  
To Come ◽  
Novel Coronavirus ◽  
Nano Medicine

An outbreak of “Pneumonia of Unknown Etiology” occurred in Wuhan, China, in late December 2019. Later, the agent factor was identified and coined as SARS-CoV-2, and the disease was named coronavirus disease 2019 (COVID-19). In a shorter period, this newly emergent infection brought the world to a standstill. On 11 March 2020, the WHO declared COVID-19 as a pandemic. Researchers across the globe have joined their hands to investigate SARS-CoV-2 in terms of pathogenicity, transmissibility, and deduce therapeutics to subjugate this infection. The researchers and scholars practicing different arts of medicine are on an extensive quest to come up with safer ways to curb the pathological implications of this viral infection. A huge number of clinical trials are underway from the branch of allopathy and naturopathy. Besides, a paradigm shift on cellular therapy and nano-medicine protocols has to be optimized for better clinical and functional outcomes of COVID-19-affected individuals. This article unveils a comprehensive review of the pathogenesis mode of spread, and various treatment modalities to combat COVID-19 disease.

scholarly journals Analysis of MYO1H Gene Polymorphism in Skeletal Class-III Malocclusion Due to Mandibular Prognathism

2021 ◽  
Author(s):  
Anjana Atteeri ◽  
Praveen Kumar Neela ◽  
Pavan Kumar Mamillapalli ◽  
Vasu M. Sesham ◽  
Sreekanth Keesara ◽  
...  
Keyword(s):  
Local Population ◽  
Research Work ◽  
Control Group ◽  
Study Group ◽  
Genome Wide Association Studies ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Prognathism ◽  
Skeletal Class ◽  
Increased Risk

Abstract Background Mandibular prognathism (MP) is a craniofacial deformity resulting from the combined effects of environmental and genetic factors. Although various linkage and genome-wide association studies for mandibular prognathism have identified multiple strongly associated regions and genes, the causal genes and variants responsible for the deformity remained ambiguous. Aim This research work was aimed to study the association between polymorphism rs10850110 of the MYO1H gene and skeletal class-III malocclusion in our local population. Materials and Methods Thirty patients with skeletal class III due to mandibular prognathism in the study group and 30 patients with skeletal class I in the control group were selected for this study. These patients were from both sexes and above age 10 years. Based on the cephalometric values, patients were categorized into study and control groups. SNB (angle between sella, nasion and point B at nasion) greater than 82 degrees with an ANB (angle between point A, nasion and point B at nasion) of less than 0 degrees in the study group and ANB (angle between point A, nasion and point B at nasion) of 2 to 4 degrees in the control group were categorized. The polymorphism (rs10850110) of the MYO1H gene was genotyped using polymerase chain reaction and restriction fragment length polymorphism. Associations were tested with SNP exact test using SNPstats software. Results The single-nucleotide polymorphism rs10850110 showed a statistically significant association with mandibular prognathism. The G allele of marker rs10850110 (5′ of myosin1H - MYO1H) was overrepresented when compared with the “A” allele in mandibular prognathism cases (p < 0.0001), and this was very significant. Conclusion These results suggest that the rs10850110 polymorphism of the MYO1H gene is associated with an increased risk for mandibular prognathism.

scholarly journals 3D evaluation of the morphological and volumetric changes of the tongue and oral cavity before and after orthognathic surgery for mandibular prognathism: a preliminary study

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Airy Teramoto ◽  
Shoichi Suzuki ◽  
Norihisa Higashihori ◽  
Naoto Ohbayashi ◽  
Toru Kurabayashi ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Orthognathic Surgery ◽  
Mandibular Prognathism ◽  
Before And After ◽  
Preliminary Study ◽  
3D Evaluation

scholarly journals Current Trends in Orthognathic Surgery in Poland—A Retrospective Analysis of 124 Cases

2021 ◽  
Vol 11 (14) ◽  
pp. 6439
Author(s):  
Ewa Zawiślak ◽  
Szymon Przywitowski ◽  
Anna Olejnik ◽  
Hanna Gerber ◽  
Paweł Golusiński ◽  
...  
Keyword(s):  
Orthognathic Surgery ◽  
Corrective Osteotomy ◽  
University Hospital ◽  
Class Iii ◽  
Facial Skeleton ◽  
Skeletal Class ◽  
Skeletal Malocclusion ◽  
Current Trends ◽  
Maxillary Osteotomy ◽  
Skeletal Class Ii

The analysis aims at assessing the current trends in orthognathic surgery. The retrospective study covered a group of 124 patients with skeletal malocclusion treated by one team of maxillofacial surgeons at the University Hospital in Zielona Góra, Poland. Various variables were analysed, including demographic characteristics of the group, type of deformity, type of osteotomy used, order in which osteotomy was performed and duration of types of surgery. The mean age of the patients was 28 (ranging from 17 to 48, SD = 7). The group included a slightly bigger number of females (59.7%), with the dominant skeletal Class III (64.5%), and asymmetries were found in 21.8% of cases. Types of osteotomy performed during surgeries were divided as follows: LeFort I, segmental LeFort I, BSSO, BSSO with genioplasty, LeFort I with BSSO, LeFort I with BSSO and genioplasty, segmental LeFort I with BSSO, isolated genioplasty. Bimaxillary surgeries with and without genioplasty constituted the largest group of orthognathic surgeries (49.1%), and a slightly smaller percentage were one jaw surgeries (46.7%). A statistically significant correlation was found between the type of surgery and the skeletal class. In patients with skeletal Class III, bimaxillary surgeries were performed significantly more often than in patients with skeletal Class II (57.5% vs. 20.0%; p = 0.0002). The most common type of osteotomy in all surgeries was bilateral osteotomy of the mandible modo Obwegeser–Epker in combination with Le Fort I maxillary osteotomy (42.7%). The order of osteotomies in bimaxillary surgeries was mandible first in 61.3% of cases. The longest surgery was bimaxillary osteotomy with genioplasty (mean = 265 min), and the shortest surgery was isolated genioplasty (mean = 96 min). The results of the analysis show a significant differentiation between the needs of orthognathic surgery and the types of corrective osteotomy applied to the facial skeleton.

A Comparison of Five Different Methods for Describing Sagittal Jaw Relationship

1993 ◽  
Vol 20 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Johannes Kirchner ◽  
Stephen Williams
Keyword(s):  
Correlation Analysis ◽  
Treatment Planning ◽  
Class Ii ◽  
Diagnosis And Treatment ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Accurate Picture

Analysis of sagittal jaw relationship is important in orthodontic diagnosis and treatment planning, and can be investigated by angular or linear parameters. In the present study an analysis was performed using profile cephalograms of 40 children with skeletal Class II malocclusion. A correlation analysis is presented, involving five different methods of expressing sagittal jaw relationships. Whilst some degree of agreement could be noted, it was not possible to suggest a pair of measurements, which in combination, could give a more accurate picture of sagittal jaw relationships.

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