Comparison of oropharyngeal airway dimensional changes in patients with skeletal Class II and Class III malocclusions after orthognathic surgery and functional appliance treatment: A systematic review

Functional orthopedic treatment seeks to improve skeletal and dental relationship of the jaws. The challenging task is to correctly position jaws antero-posteriorly and vertically with correct overbite, overjet and Centric relation. The Churro Jumper is an efficient, inexpensive and uncomplicated fixed flexible functional appliance. It is used to evaluate the efficacy of the Churro Jumper appliance in treatment of skeletal Class II malocclusion with retrognathic mandible. Churro Jumper contributes in correction of Class II molar relationship by dento-alveolar effects on both jaws. There was up-righting of maxillary incisors and proclination of mandibular incisors. Churro Jumper is clinically efficient as well as effective appliance to correct skeletal class II malocclusion. The only problem with this appliance is its frequent breakage and oral hygiene maintenance causing inconvenience to both patient as well as operator.

Download Full-text

The Oropharyngeal Airway in Young Adults with Skeletal Class II and Class III Deformities: A 3-D Morphometric Analysis

PLoS ONE ◽

10.1371/journal.pone.0148086 ◽

2016 ◽

Vol 11 (2) ◽

pp. e0148086 ◽

Cited By ~ 10

Author(s):

Yasas Shri Nalaka Jayaratne ◽

Roger Arthur Zwahlen

Keyword(s):

Young Adults ◽

Morphometric Analysis ◽

Class Ii ◽

Class Iii ◽

Skeletal Class ◽

Oropharyngeal Airway ◽

Skeletal Class Ii

Download Full-text

Obstructive sleep apnea prevalence in subjects with skeletal class II Or Class III with maxillary hypoplasia deformities waiting for orthognathic surgery

Sleep Medicine ◽

10.1016/j.sleep.2019.11.839 ◽

2019 ◽

Vol 64 ◽

pp. S299

Author(s):

S. Pérez Ramos ◽

J. Bordas Martínez ◽

M. Gasa Galmes ◽

A. Izquierdo Miranda ◽

C. López-Padrós ◽

...

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Orthognathic Surgery ◽

Class Ii ◽

Class Iii ◽

Maxillary Hypoplasia ◽

Skeletal Class ◽

Skeletal Class Ii ◽

Obstructive Sleep

Download Full-text

Obstructive sleep apnea prevalence in subjects with skeletal class II or class III with maxillary hypoplasia deformities waiting for orthognathic surgery

10.1183/13993003.congress-2019.pa832 ◽

2019 ◽

Author(s):

Jaume Bordas-Martinez ◽

Mercè Gasa Galmes ◽

Alexandre Izquierdo Miranda ◽

Carla López-Padrós ◽

Eliseo Prado Gala ◽

...

Keyword(s):

Obstructive Sleep Apnea ◽

Sleep Apnea ◽

Orthognathic Surgery ◽

Class Ii ◽

Class Iii ◽

Maxillary Hypoplasia ◽

Skeletal Class ◽

Skeletal Class Ii ◽

Obstructive Sleep

Download Full-text

Effects of functional appliance treatment on pharyngeal airway passage dimensions in Class II malocclusion subjects with retrognathic mandibles: A systematic review

APOS Trends in Orthodontics ◽

10.25259/apos_59_2019 ◽

2019 ◽

Vol 9 ◽

pp. 138-148

Author(s):

Anusuya V ◽

Ashok Kumar Jena ◽

Jitendra Sharan

Keyword(s):

Class Ii ◽

Class Ii Malocclusion ◽

Cochrane Central Register ◽

Qualitative Synthesis ◽

Functional Appliance ◽

Skeletal Class ◽

Oropharyngeal Airway ◽

Pharyngeal Airway ◽

Skeletal Class Ii ◽

Cochrane Database

Objective: The objective of this study was to assess the pharyngeal airway passage (PAP) dimension changes following functional appliance treatment in Class II malocclusion subjects with retrognathic mandibles. Materials and Methods: Two authors independently searched various electronic databases such as PubMed, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Scopus, NCBI, and Google Scholar for the available literature within the period from January 1, 2001, to December 31, 2018. On the basis of population, intervention, comparison, and outcome, “changes in PAP dimensions following functional appliance therapy in skeletal Class II malocclusion subjects associated with mandibular retrusion” was considered as search question of the study. After the selection and removal of duplicate articles, assessment for risk of bias was calculated and the data from the included articles were extracted by two authors independently. Results: From six databases and additional hand searching, a total of 5784 articles were extracted. Of 5784 articles, 3754 articles were screened after removal of 2030 duplicates. After going through the title and abstract, 3197 articles were excluded and 40 articles were assessed for full text. From these 40 articles, eight articles fulfilled our inclusion and exclusion criteria for the qualitative synthesis review. Conclusions: The correction of mandibular deficiency by functional appliances has minimum effect on the nasopharynx. Functional appliance treatment has a significant effect on the improvement of the oropharyngeal airway. Changes of hypopharyngeal airway passage need to be studied further among Class II malocclusion subjects with retrognathic mandibles.

Download Full-text

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

Applied Sciences ◽

10.3390/app11146439 ◽

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.

Download Full-text

Anatomical characteristics of mandibular bone in skeletal Class I, II and III patients by using cone beam computed tomography images in an iranian population

Brazilian Dental Science ◽

10.14295/bds.2021.v24i2.2475 ◽

2021 ◽

Vol 24 (2) ◽

Author(s):

Mohammad Zandi ◽

Abbas Shokri ◽

Vahid Mollabashi ◽

Zahed Eghdami ◽

Payam Amini

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Class Ii ◽

Class I ◽

Cone Beam ◽

Class Iii ◽

Anatomical Characteristics ◽

Skeletal Class ◽

Skeletal Class Ii ◽

Ramus Height

Objetive: This study aimed to compare the anatomical characteristics of the mandible in patients with skeletal class I, II and class III disorders using cone beam computed tomography (CBCT). Material and Methods: CBCT scans of patients between 17 to 40 years taken with NewTom 3G CBCT system with 12-inch field of view (FOV) were selected from the archive. Lateral cephalograms were obtained from CBCT scans of patients, and type of skeletal malocclusion was determined (Class I, II or III). All CBCT scans were evaluated in the sagittal, coronal and axial planes using the N.N.T viewer software. Results: The ramus height and distance from the mandibular foramen to the sigmoid notch in class II patients were significantly different from those in skeletal class I (P < 0.005). Distance from the mandibular canal to the anterior border of ramus in class III individuals was significantly different from that in skeletal class I individuals (P < .005). Conclusion: Length of the body of mandible in skeletal class I was significantly different from that in skeletal class II and III patients. Also, ramus height in skeletal class I was significantly different from that in skeletal class II patients. CBCT had high efficacy for accurate identification of anatomical landmarks. Keywords Prognathism; Retrognathism; Mandible; Anatomy; Cone beam computed tomography.

Download Full-text