European Journal of Molecular & Clinical Medicine

Aim: The purpose of our research was to evaluate the preference of treatment strategy
amongst the dental professionals about class III malocclusion correction.
Methodology: A questionnaire survey for over a period of 1 year amongst 260 dental
professionals working for over 5 years. They were asked about their preference of
treatment strategies for carrying out correction of class III malocclusion cases. Their
experience of relapses, patient satisfaction as well as difficulty in handling such cases was
also recorded. Descriptive statistical analysis was carried out for assessing the data
recorded with the help of SPSS 25.0.
Results: Dental professionals were of divided opinion regarding the treatment strategy for
class III malocclusion. However, most of them were of the view that orthodontic treatment
had more relapses as compared to orthognathic surgery combined with orthodontic
therapy, which was statistically significant as well (p=0.035).
Conclusion: Most of the survey participants were of opinion that combined treatment with
surgery first approach; will improve the facial profile of the patients drastically.

Objective: This study aimed to evaluate maxillary and mandibular skeletal changes, and OP inclination changes in combined surgical-orthodontically treated patients skeletal class III patients by Bilateral sagittal split osteotomy setback. Further analyze the variations of OP inclination related to functionality, esthetics, and subset-based dentition analysis, and analyze the correlation between skeletal and Occlusal plane parameters.
Methods: A research for the pre besides post treatment cephalograms in patients with a mean age of 23± 2.7 years who met the requirements for inclusion was conducted.  The skeletal and occlusal plane parameters were mapped and calculated using the programme of Ilexis, (Sweden) FACAD AB-2017 Version 3.9.0.  To compare the variables between occlusal parameters and skeletal pre in addition post treatment the opposite t-test was used.  The Correlations between skeletal parameters and occlusal plane variables were determined with the bivariate correlation coefficient.
Results: The results show a very high statistically significant increase in the FOP and BOP. However, based on the inclination changes of OP related to subset dentitions, the maxillary dentition shows no significant changes. The inclination of OP related to mandibular subset dentition shows significant changes. The correlation analysis reveals a skeletal parameter of the inclination of the mandible relates to the changes in the inclination of OP.
Conclusion: The surgical-orthodontic approach involving BSSO setback resulted in a significant change concerning the occlusal lane inclination.
 

Purpose of the study : This study aimed to determine the height at which both the lateral
and medial cortical bone layers of mandibular ramus merge, using a reference point on the
anterior margin of the mandibular ramus and comparing with lingula as another
reference point, using cone beam computed tomography, thus establishing an effective
method of determining the level of the horizontal cut of sagittal split osteotomy.
Material and Methods: The mandibular ramus of 15 patients were analysed on a three
dimensional (3D) model constructed using Cone Beam Computed Tomography. Starting at
reference point (A), a line was marked from the anterior border of the ramus of mandible
till the posterior border on lateral surface. On three vertical section of the ramus (1/3rd
and 2/3rd and lingula), the level at which both lingual and buccal cortices meet were
determined- A1 and A2 and L respectively.
The results of the study showed that mean height of fusion of medial and lateral cortices at
1/3rd and 2/3rd and lingula were 8.96mm, 4.62mm and 11.00mm respectively.
Conclusion:The point A is a safe and easy to locate anatomic reference point to establish
the level of horizontal cut in sagittal split ramus osteotomy (SSRO).

Aim: The purpose of our research was to evaluate the preference of treatment strategy
amongst the orthodontists about class III malocclusion correction.
Methodology: A questionnaire survey for over a period of 1 year amongst 12 orthodontists
working for over 2 years. They were asked about their preference of treatment strategies for
carrying out correction of class III malocclusion cases. Their experience of relapses, patient
satisfaction as well as difficulty in handling such cases was also recorded. Descriptive
statistical analysis was carried out for assessing the data recorded with the help of SPSS 25.0.
Results: Orthodontists were of divided opinion regarding the treatment strategy for class III
malocclusion. However, most of them were of the view that orthodontic treatment had more
relapses as compared to orthognathic surgery combined with orthodontic therapy, which was
statistically significant as well (p=0.035).
Conclusion: Most of the survey participants were of opinion that combined treatment with
surgery first approach; will improve the facial profile of the patients drastically.

Aim: Purpose of our research was to assess any soft tissue changes, especially related to alar base after orthognathic surgical procedure. Methodology: 20 patients were selected for this study who were suffering from maxillary hypoplasia, maxillary or mandibular prognathism. They underwent orthognathic surgeries like LeFort I osteotomy of maxilla and/or bilateral sagittal split osteotomy (BSSO) of mandible, or combinations with Genioplasty,Anterior Maxillary Osteotomy and/or Sub-Apical Osteotomy. Superimposition of 3D photographic images before and after treatment was performed for comparisons using 3D stereophotogrammetric camera setup and software. Paired t-test was performed to compare between pre- as well as post-operative measurements of alar base. Results: The average width of the alar base and subalare were almost same after surgery. Alar width was amplified by 0.74 mm. Nasal height and length persisted. Nasolabial angle enlarged significantly. Nostril’s total area also increased. Nasal tip projection decreased significantly by 1.99 mm. Conclusion: The nasal changes in patients demonstrated an increase of the nasolabial angle, a delicate increase of the alar width, together with no change on the alar base width, nasal height, and nasal length.

Prediction planning for orthognathic surgery allows the orthodontist to anticipate changes in hard and soft tissue that may arise as a result of the surgery. This can be useful to accordingly plan the orthognathic surgery and also as a means for informed patient’s consent and to communicate with the concerned maxillofacial surgeon. Cephalometric prediction in orthognathic surgery enables direct evaluation of both dental and skeletal movements, and can be performed manually or by computers, using several software programmes currently available. They can also be incorporated with video images. The aim of this article is to present and discuss the different methods of cephalometric prediction of the orthognathic surgical outcome.

Most of the signs of ageing can be related to volume loss. Dermal fillers are substances which can be injected beneath the skin, that helps restore the lost volume. They are gel like in consistency.1 Patients seeking orthodontic therapy often also present with adjuvant soft tissue deformities. The soft tissue deformity caused by an underlying skeletal or dental deformity will be self-corrected by orthognathic and/or orthodontic treatment. The inherent soft tissue deformities like decreased lip length, increased or decreased lip thickness, inadequate vermillion show, can be addressed by injecting dermal fillers, Botulinum Toxin A and cosmetic surgical soft tissue procedures.

Aim: To evaluate the skeletal stability in wiring and plating fixation technique after genioplasty advancement. Methodology: Patients who came for repair of cleft alveolus were enrolled within the study. Retrospectively all the Lateral Cephalogram were taken for patients undergoing Orthognathic Surgery; pre-operatively, 1-week post-operative and 1-year post-operatively after advancement genioplasty. Two groups were divided in keeping with the osteosynthesis technique used, Group 1- Wiring Osteosynthesis (n=38) and Group 2- Miniplate Osteosynthesis (n=38). Linear measurements were done after tracing all the Lateral Cephalograms. Results: In the semi rigid group (wire fixation) a mean horizontal advancement of 5.97 mm was in the midst of a relapse of 1.623 mm. The mean superior repositioning of menton was 0.7 mm. This was in the middle of a relapse of 0.3 mm during a period of 1 year. Within the rigid group (miniplate) a mean horizontal advancement of 4.815 mm was in the course of a relapse of 0.2 mm. The mean superior repositioning of menton was 0.975 mm. Conclusion: The results of our study and our clinical experience indicate that this single plate is a particularly simple and extremely useful method of stabilization.