scholarly journals Rare case of skeletal third class in a subject suffering from Solitary Median Maxillary Central Incisor syndrome (SMMCI) associated to panhypopituitarism

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Alessandro Nota ◽  
Shideh Ehsani ◽  
Laura Pittari ◽  
Giorgio Gastaldi ◽  
Simona Tecco
Keyword(s):  
Rare Case ◽  
The Body ◽  
Craniofacial Morphology ◽  
Central Incisor ◽  
Class Iii ◽  
Airway Patency ◽  
Maxillary Central Incisor ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Mandibular Protrusion

Abstract Background The median solitary maxillary central incisor syndrome (SMMCI) is a rare malformative syndrome consisting of multiple defects, mainly found on the body midline. It can be correlated to the etiopathological and phenotypic pattern of panhypopituitarism. This case-report describes the rare case of a patient suffering from SMMCI and panhypopituitarism, showing an unusual craniofacial morphology. Case presentation From the cephalometric analysis, a skeletal class III was identified (despite the other cases described in literature described as skeletal class II), derived from hypomaxillia and mandibular protrusion. A convex lip profile, with tendency to mandibular hyper-divergency, airway patency, anterior and posterior cross-bite were observed. At the clinical examination, a maxillary cant was evident on the frontal plane that appeared asymmetric, with the prevalence of the third lower part of the face. There were some dysmorphic signs such as: small nose, rectilinear eyelid line and reduced interocular distance. Conclusions The present clinical case shows how, despite the literature, SMMCI can be associated with a III skeletal class, with maxillary hypoplasia and mandibular protrusion. The interdisciplinary collaboration between dentist and pediatrician is therefore important for the early interception of the malocclusions associated with these syndromes.

scholarly journals Age-related hypertrophy of adenoid and tonsil with its effects on craniofacial morphology

2021 ◽  
Author(s):  
Xin Huang ◽  
Xu Gong ◽  
Xuemei Gao
Keyword(s):  
Craniofacial Morphology ◽  
Control Group ◽  
Adenoid Hypertrophy ◽  
Linear Regression Models ◽  
Class Iii ◽  
Tonsillar Hypertrophy ◽  
Skeletal Class ◽  
Adenotonsillar Hypertrophy ◽  
Skeletal Class Ii ◽  
Age Related

Abstract The present retrospective cross-sectional study was to compare craniofacial patterns resulted from different locations of upper airway obstruction. The study was conducted among 466 consecutive orthodontic patients who were divided into four groups: adenoid hypertrophy group (AG: 70 girls and 56 boys, 11.73±2.51 years), tonsillar hypertrophy group (TG: 38 girls and 21 boys, 12.47±2.72 years), adenotonsillar hypertrophy group (ATG: 36 girls and 33 boys, 11.07±3.35 years) and control group (CG: 151 girls and 61 boys, 12.92±2.34 years). Standard cephalometric examinations were used to compare the craniofacial differences between groups. The result indicated that adenoids and tonsils reached peak at around 6 years of age, after which the tonsils decreased more remarkably than the adenoids. Compared with CG, the proportions of skeletal class II in AG (43.7%) and ATG (44.9%) were significantly increased and the proportion of skeletal class III in TG (32.2%) was significantly increased. In age- and sex-adjusted linear regression models regarding CG as a benchmark, AG and ATG were positively correlated with ANB, MP/SN and FH/SGn but negatively correlated with SNB. In contrast, TG was positively correlated with SNA and SNB. Conclusion: Adenoid hypertrophy tended to lead to mandibular retrusion and high mandibular plane angle. In contrast, tonsillar hypertrophy showed a trend in mandibular protrusion. However, children with adenotonsillar hypertrophy did not show a mean facial pattern of the above two but were rather similar to those with isolated adenoid hypertrophy. It seemed that adenoid hypertrophy lasted longer and played a greater role.

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.

Invasive Cervical Resorption Class III in a Maxillary Central Incisor: Diagnosis and Follow-up by Means of Cone-Beam Computed Tomography

2010 ◽  
Vol 36 (12) ◽  
pp. 2012-2014 ◽  
Author(s):  
Roberto Estevez ◽  
Jose Aranguren ◽  
Alfonso Escorial ◽  
Cesar de Gregorio ◽  
Francisco De La Torre ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Central Incisor ◽  
Class Iii ◽  
Maxillary Central Incisor

scholarly journals Determination of Sagittal Skeletal Discrepancy through Beta Angle: A Lateral Cephalometric Study

2020 ◽  
Vol 10 (3) ◽  
pp. 40-43
Author(s):  
Farah Saleem ◽  
Zubair H Awiasi
Keyword(s):  
Correct Diagnosis ◽  
Cross Sectional Study ◽  
X Rays ◽  
Class Iii ◽  
Cross Sectional ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Beta Angle ◽  
Third Line ◽  
Cephalometric Study

Introduction: Accurate classification and treatment planning relies on correct diagnosis of skeletal and dentalrelationships. Commonly used measurements used to classify sagittal relationship ANB and Wit’s appraisal are not without potential inherent problems which might lead to less accurate classification of sagittal dysplasia. To avoid these problems, a new approach Beta angle was introduced by Baik in 2004. Beta angle as it involves different landmarks of classifying anterior-posterior relationships is said to be devoid of those problems thus more reliable. We conducted a cross sectional study to measure the angle among patients presenting in Nishtar Institute of Dentistry Multan Pakistan. Materials and Method: Ninety pretreatment cephalometric x-rays of patients between ages 12 to 30 years were selected and studied. They were divided into three classes based on ANB angle and Wit’s appraisal. For the measurement of Beta angle, a line was drawn from the center of condyle (C) to point A and other to point B. A third line joining A to B was drawn. A line from point A perpendicular to line C-B was drawn and angle was measured between this perpendicular and line joining A-B. ANOVA was used to compare means of three groups. Pearson correlational coefficient was used to correlate relationship between Beta angle and ANB angle. Result: The results showed Beta angle ranged between 27° and 34° for class I. Subjects having angle less than 27° can be classified as skeletal class II and those with angles larger than 34° as skeletal class III subjects. Conclusion: Beta angle is reliable method for assessing and classifying sagittal skeletal discrepancies 

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

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.

scholarly journals A rare presentation of Bilateral mesiodens in maxilla

1970 ◽  
Vol 10 (4) ◽  
pp. 287-288 ◽  
Author(s):  
S Nayak
Keyword(s):  
Key Words ◽  
Male Patient ◽  
Rare Case ◽  
Common Type ◽  
Central Incisor ◽  
Supernumerary Teeth ◽  
Rare Presentation ◽  
Maxillary Central Incisor ◽  
Natural Teeth ◽  
Excess Number

Supernumerary teeth are a relatively frequent disorder of odontogenesis characterized by an excess number of teeth. Mesiodens is the most common type of supernumerary teeth found in the premaxilla between the two central incisors. They can be supplemental (resembling natural teeth), conical, tuberculate, or molariform. We present a rare case of 41 year old male patient who presented with bilateral mesiodens. Key words: Mesiodens; supernumerary teeth; maxillary central incisor DOI: http://dx.doi.org/10.3329/bjms.v10i4.9503 BJMS 2011; 10 (4): 287-288

scholarly journals Relationship between skeletal Class II and Class III malocclusions with vertical skeletal pattern

2019 ◽  
Vol 24 (4) ◽  
pp. 63-72
Author(s):  
Sonia Patricia Plaza ◽  
Andreina Reimpell ◽  
Jaime Silva ◽  
Diana Montoya
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Multinomial Regression ◽  
Lateral Cephalogram ◽  
Cross Sectional ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Skeletal Pattern

ABSTRACT Objective: The purpose of this study was to establish the association between sagittal and vertical skeletal patterns and assess which cephalometric variables contribute to the possibility of developing skeletal Class II or Class III malocclusion. Methods: Cross-sectional study. The sample included pre-treatment lateral cephalogram radiographs from 548 subjects (325 female, 223 male) aged 18 to 66 years. Sagittal skeletal pattern was established by three different classification parameters (ANB angle, Wits and App-Bpp) and vertical skeletal pattern by SN-Mandibular plane angle. Cephalometric variables were measured using Dolphin software (Imaging and Management Solutions, Chatsworth, Calif, USA) by a previously calibrated operator. The statistical analysis was carried out with Chi-square test, ANOVA/Kruskal-Wallis test, and an ordinal multinomial regression model. Results: Evidence of association (p< 0.05) between sagittal and vertical skeletal patterns was found with a greater proportion of hyperdivergent skeletal pattern in Class II malocclusion using three parameters to assess the vertical pattern, and there was more prevalent hypodivergence in Class III malocclusion, considering ANB and App-Bpp measurements. Subjects with hyperdivergent skeletal pattern (odds ratio [OR]=1.85-3.65), maxillary prognathism (OR=2.67-24.88) and mandibular retrognathism (OR=2.57-22.65) had a significantly (p< 0.05) greater chance of developing skeletal Class II malocclusion. Meanwhile, subjects with maxillary retrognathism (OR=2.76-100.59) and mandibular prognathism (OR=5.92-21.50) had a significantly (p< 0.05) greater chance of developing skeletal Class III malocclusion. Conclusions: A relationship was found between Class II and Class III malocclusion with the vertical skeletal pattern. There is a tendency toward skeletal compensation with both vertical and sagittal malocclusions.

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