scholarly journals Association of Morphological Characteristics of Palatal Rugae Pattern with Dental Malocclusion in Himachal Population

2021 ◽  
Vol 8 (5) ◽  
pp. 13-18
Author(s):  
Indu Dhiman ◽  
Shikha Thakur ◽  
Depinder Pal Singh
Keyword(s):  
Morphological Characteristics ◽  
Class I ◽  
Class Iii ◽  
Stable Point ◽  
Palatal Rugae ◽  
Pattern Length ◽  
The Right ◽  
Dental Cast ◽  
Orientation Pattern ◽  
Dental Malocclusion

Introduction: Palatal rugae used for the evaluation of dental movements and as a landmark in the superimposition of dental cast for orthodontic purpose as it is a stable point. So, the aims and objectives of our study is to investigate the association of morphological characteristics of palatal rugae with dental malocclusion in Himachali population. Materials and methods: 90 subjects divided into three groups (n=30 each) on the basis of Angle’s classification. Palatal rugae were marked on dental casts and evaluated for length, pattern and orientation. Obtained measurements were then statistically analysed. Conclusion: Primary palatal rugae’s length was found more in Class II followed by Class III and Class I malocclusion. Among the pattern of the primary palatal rugae, curved pattern were more evident on both right and left sides of all malocclusion groups. Horizontal directed orientation is more predominant on the right side and posteriorly directed on the left side of the first primary palatine rugae. Keywords: Rugae, Malocclusion, orientation pattern, length, morphology.

scholarly journals Treatment of Class III Malocclusion in an Adolescent with Banded RPE/Face Mask and Self-Ligating System

2017 ◽  
Vol 1 ◽  
Author(s):  
Dwita Pratiwi Dwita Pratiwi ◽  
Benny Mulyono Soegiharto
Keyword(s):  
Orthodontic Treatment ◽  
Face Mask ◽  
Class I ◽  
Adolescent Patient ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Facial Profile ◽  
The Right ◽  
Cervical Vertebral Maturation ◽  
Dental Malocclusion

<p>This case report describes the treatment of a 12-years-old female with a Class III skeletal profile and dental malocclusion. The clinical examination showed concave profile, class III dental relationship, buccal crossbite on the right side, and mild crowding. The cervical vertebral maturation analysis showed the patient was on the CS3 stage. The class III malocclusion was treated with combination of banded rapid palatal expander and face mask followed by non-extraction orthodontic treatment with self-ligating system. Banded rapid palatal expander and face mask were used to improve the skeletal discrepancy. Class I maxilla-mandibular relationship was achieved along with class I molar, incisor, and canine relationship. The buccal crossbite and mild crowding were corrected, the overbite and overjet were normal, and the facial profile was improved. This case demonstrates a good result of a class III malocclusion treatment in an adolescent patient with banded rapid palatal expander/face mask and self-ligating system.</p>

scholarly journals The association between palatal rugae pattern and dental malocclusion

2019 ◽  
Vol 24 (1) ◽  
pp. 037e1-037e9 ◽  
Author(s):  
Farheen Fatima ◽  
Mubassar Fida ◽  
Attiya Shaikh
Keyword(s):  
Class Ii ◽  
Cross Sectional Study ◽  
Class Iii ◽  
Sectional Study ◽  
Cross Sectional ◽  
Palatal Rugae ◽  
Significant Difference ◽  
The Mean ◽  
The Right ◽  
Dental Malocclusion

ABSTRACT Introduction: Palatal rugae complete its development during early intrauterine life, whereas dental malocclusions in permanent dentition establishes several years into the post-natal life. Objective: The objective of present study was to determine if there is an association between the palatal rugae pattern and Angle’s classes of malocclusion. Methods: A cross-sectional study was conducted on pretreatment dental casts of 184 patients. The sample was divided into the following groups: Class I, Class II div. 1, Class II div. 2, and Class III. The number of palatal rugae was recorded, bilaterally. The length, pattern and orientation of three anterior-most primary rugae on both sides were recorded. Results: The mean age of the study sample was 17.8 ± 5.4 years. The mean number of the palatal rugae was 11.18 ± 2.5, with significant differences among different malocclusion groups. The length of the first rugae on left side and third rugae on both sides varied significantly among the groups (p< 0.05). Similarly, the pattern of palatal rugae was also found to be significantly different among the malocclusion groups. The right sided rugae did not have any significant difference in the orientation in different malocclusion groups; however, the left sided rugae showed significant differences among the four malocclusion groups (p< 0.001). Conclusions: The current study showed subtle differences in the palatal rugae pattern among the Angle’s classes of malocclusion. Similarly, the length and orientation of some rugae were also found to be significantly different between malocclusion groups.

scholarly journals Bone availability for mandibular molar distalization in adults with mandibular prognathism

2017 ◽  
Vol 88 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Young Tak Choi ◽  
Yoon-Ji Kim ◽  
Kyung-Sook Yang ◽  
Dong-Yul Lee
Keyword(s):  
Mixed Models ◽  
Class I ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Molar Distalization ◽  
Mandibular Prognathism ◽  
Second Molar ◽  
Mandibular Molar ◽  
Mandibular Second Molar ◽  
The Right

ABSTRACT Objectives: To investigate the retromolar space available for molar distalization in patients with mandibular prognathism. Materials and Methods: Using cone-beam computed tomography, the posterior mandibular dimensions in 110 consecutive patients with Class I or Class III malocclusion were measured (mean age, 27.0 ± 7.1 years). The shortest linear distances from the distal root of the right mandibular second molar to the inner border of the mandibular cortex were measured at the level of root furcation and 2, 4, and 6 mm apical to the furcation along the sagittal line and the posterior line of occlusion. The retromolar distances were compared between the Class I and Class III malocclusion groups using general linear mixed models. Results: The retromolar space measured through the sagittal line showed no significant intergroup difference. Among the distances measured through the posterior line of occlusion, the space measured at depths 0 and 2 mm to the furcation were significantly greater in the Class III group than in the Class I group. Conclusions: Patients with Class III malocclusion have greater retromolar space for mandibular molar distalization along the posterior line of occlusion only at the level of the second molar furcation.

scholarly journals Dehiscence and fenestration in skeletal Class I, II, and III malocclusions assessed with cone-beam computed tomography

2011 ◽  
Vol 82 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Ahmet Yagci ◽  
İlknur Veli ◽  
Tancan Uysal ◽  
Faruk Izzet Ucar ◽  
Törün Ozer ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Null Hypothesis ◽  
Class Ii ◽  
The Other ◽  
Class I ◽  
Cone Beam ◽  
Class Iii ◽  
Skeletal Class ◽  
Dental Malocclusion

Abstract Objective: To test the null hypothesis that the presence of dehiscence and fenestration was not different among patients with skeletal Class I, II, and III malocclusions. Materials and Methods: In this retrospective study, a total of 123 cone-beam computed tomography (CBCT) images were obtained with an iCAT scanner (Imaging Sciences International, Hatfield, Pa). Patients with normal vertical patterns were classified according to dental malocclusion and ANB angle. Class I comprised 41 patients—21 girls and 20 boys (mean age, 22.4 ± 4.5 years); Class II comprised 42 patients—22 girls and 20 boys (mean age, 21.5 ± 4.2 years); and Class III comprised 40 subjects—22 girls and 18 boys (mean age, 22.1 ± 4.5 years). A total of 3444 teeth were evaluated. Analysis of variance and Tukey's test were used for statistical comparisons at the P &lt; .05 level. Results: Statistical analysis indicated that the Class II group had a greater prevalence of fenestration than the other groups (P &lt; .001). No difference was found in the prevalence of dehiscence among the three groups. Although fenestration had greater prevalence in the maxilla, more dehiscence was found in the mandible for all groups. In Class I, alveolar defects (dehiscence, fenestration) were matched relatively in both jaws. Furthermore, Class II and Class III subjects had more alveolar defects (41.11% and 45.02%, respectively) in the mandible. Dehiscences were seen with greater frequency in the mandibular incisors of all groups. Conclusion: The null hypothesis was rejected. Significant differences in the presence of fenestration were found among subjects with skeletal Class I, Class II, and Class III malocclusions. Fenestrations had greater prevalence in the maxilla, but more dehiscences were found in the mandible.

Properties of postganglionic sympathetic fibers isolated from the right recurrent laryngeal nerve

1995 ◽  
Vol 79 (2) ◽  
pp. 594-599 ◽  
Author(s):  
A. Balkowiec ◽  
P. Szulczyk
Keyword(s):  
Recurrent Laryngeal Nerve ◽  
Class Ii ◽  
Laryngeal Nerve ◽  
Class I ◽  
Class Iii ◽  
Upper Airways ◽  
Activity Class ◽  
Systemic Hypoxia ◽  
Resting Activity ◽  
The Right

The pattern of response of 45 single postganglionic sympathetic axons dissected from the right recurrent laryngeal nerve was examined in chloralose-anesthetized cats. Both vagoaortic nerves were cut, and both sinus nerves were left intact. Each neuron, based on the presence of cardiac and respiratory rhythmicities in its resting activity and reaction to systemic hypoxia (10% O2 in N2 for 2 min), was classified into one of three classes. Class I neurons (n = 29, 64%) were activated during systemic hypoxia and had a pronounced cardiac and inspiration-related rhythmicity in their resting activity. Class II neurons (n = 12,27%) were inhibited during systemic hypoxia, and their cardiac and respiratory rhythmicities were either negligible or totally absent. Class III neurons (n = 4,9%), similarly to class I, had a pronounced cardiac and inspiratory rhythmicity but were not affected by systemic hypoxia. The systemic hypoxia was always accompanied by an increase in blood pressure. We conclude that class I and possibly class III neurons innervate the arteries of upper airways. We also discuss the possibility that class II neurons are responsible for regulating the smooth muscles of upper airways.

scholarly journals Types and frequency of body postures and dental malocclusions

2020 ◽  
pp. 27-31
Author(s):  
Guadalupe Rosalía Capetillo-Hernández ◽  
Leticia Tiburcio-Morteo ◽  
Rosa Elena Ochoa-Martínez ◽  
Evelyn Guadalupe Torres-Capetillo
Keyword(s):  
Back Pain ◽  
High Frequency ◽  
Class I ◽  
Class Iii ◽  
Body Postures ◽  
Posterior Crossbite ◽  
Angle Class ◽  
Upper Cervical ◽  
School Of Dentistry ◽  
Dental Malocclusion

The jaw is articulated with the skull through the temporomandibular joint. And the skull, in turn articulates with the spine (upper cervical). Important studies establish that up to 30-40 % of back pain can be caused or aggravated by dental malocclusion. Objective. To establish the types and frequency of body postures and dental malocclusions in the patients of the School of Dentistry in the period August-December 2019. Methodology. Transversal, descriptive and observational study. The sample was made up of a total of 50 patients between the ages of 19 and 70 who attended the Admission Clinic of the School of Dentistry. To which were carried out: verification of molar class, verification of midline deviation, verification of posterior crossbite, external lateral palpation of the TMJ, extraoral photographs, analysis of photographs. Contribution. It was found that there is a high frequency of one type of body posture and Angle Class I malocclusions, in patients from the School of Dentistry. In relation to malocclusions, Angle Class I predominated, as well as flattened posture, in Class II military posture and in Class III both flattened and military posture.

scholarly journals Pattern of Dental Malocclusion in Orthodontic Patients in Erbil City, Kurdistan Region-Iraq, A Retrospective Study

2020 ◽  
pp. 1-9
Author(s):  
Hasan Sabah Hasan ◽  
Ayshan Kolemen
Keyword(s):  
Retrospective Study ◽  
Class Ii ◽  
Open Bite ◽  
Class I ◽  
Kurdistan Region ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Normal Occlusion ◽  
Orthodontic Patients ◽  
Dental Malocclusion

Aim: Aims of this study were to assess the pattern of malocclusion in Erbil City, Kurdistan region- Iraq. Methods: A retrospective study includes 1212 patients (589 males and 623 females) that attended orthodontic department at the khanzad polyclinic teaching center / Erbil city, Iraq, aged 11-17 years old with a mean age of 13.49 ±1.02 years that randomly selected. The normal occlusion, malocclusion, overjet, overbite, spacing, crowding, cross bite, midline shifting and midline diastema were examined. Results: Study demonstrated that 309 (25.5%) of patients had normal occlusion. Class I malocclusion was found in 655 (72.5%), class II was found in 176 (19.5%), and class III malocclusion 72 (8.0%) patients of all examined. Crowding and midline shifting were observed more frequently in females, however, normal bite and posterior open bite were observed more frequently in males and normal crossbite more frequently in both genders. Conclusion: Results of this study showed class I molar relationship was the most prevalent type of occlusion in Erbil City, Kurdistan Region-Iraq area and the most prevalent malocclusion was crowded.

Association of Rugae Pattern with Skeletal Malocclusion in Orthodontic Patients Visiting Tertiary Care Hospital

2020 ◽  
Author(s):  
Sarwat Memon
Keyword(s):  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Care Hospital ◽  
Class Iii ◽  
Chi Square ◽  
Cross Sectional ◽  
Skeletal Malocclusion ◽  
Palatal Rugae ◽  
Significant Difference ◽  
Orthodontic Patients

Background: The palatal rugae are special constructions that are inalterable in their position and pattern during the lifestyles of an individual. This imparts them an exceptional role in the forensic dentistry and may play potential role in malocclusion identification. This study was aimed to see association of rugae pattern with sagittal skeletal malocclusion in orthodontic patients visiting tertiary care hospital. Methods: This cross-sectional examination was completed on pretreatment records (lateral Cephalometric radiographs and maxillary dental casts) of 384 subjects at the orthodontic department of Ziauddin Dental Hospital, Karachi. The study duration was from January to July 2019. The samples were sub-divided into three sagittal skeletal groups based on ANB angle proposed by Steiner’s on lateral Cephalometric radiographs (Class I with ANB angle between 0° to 4°; Class II: ANB angle greater than 5°; Class III: ANB angle less than 0°). The shapes of three most-anterior primary rugae were then evaluated bilaterally using Kapali et al., Classification. Chi Square test was applied to find association of rugae pattern among sagittal skeletal malocclusions groups. Results: Circular and curved rugae shapes were the most prevalent in all skeletal malocclusions. The primary palatal rugae pattern was seen to be significantly different among three skeletal malocclusion groups (p<0.05). The right and left sided palatal rugae pattern showed significant difference in all three skeletal malocclusion groups (p<0.05). Conclusion: The present study showed no specific palatal rugae pattern associated with sagittal skeletal malocclusion. Further studies on larger sample and use of modern 3D technologies to scan the maxillary casts are required for results that are more precise.

Chemometric Analysis of Substituent Effects. VIII. Alternative Interpretation of Substituent Effects (AISE)

1995 ◽  
Vol 60 (9) ◽  
pp. 1502-1528 ◽  
Author(s):  
Oldřich Pytela
Keyword(s):  
Multiple Bond ◽  
Substituent Effects ◽  
Alternative Interpretation ◽  
Class I ◽  
Reaction Centre ◽  
Correlation Equations ◽  
Class Iii ◽  
Substituent Constant ◽  
Chemical Models ◽  
The Individual

Alternative interpretation of substituent effects (AISE) starts from the presumption that a substituent only possesses a single property described by a single substituent constant. This property is transmitted to the reaction centre by three different ways depending on the interaction type in the triad reaction centre - basic skeleton - substituent. For interpretation it is substantial whether or not the substituent has p electrons at the atom adjacent to the basic skeleton. If it has none, the substituent belongs to class I and operates only by its basic effect described by the mentioned single substituent constant. Substituents of class II possess a free electron pair at the atom adjacent to the basic skeleton, and those of class III have a multiple bond between the first and the second atoms which is polarized in the direction from the basic skeleton. Substituent effects in class I are described by a substituent constant identical with σI constant. Substituents in classes II and III show additional effects proportional to the same constant. Hence, a separate treatment of substituent effects in the individual classes provides three straight lines intersecting in a common point. Mathematically, the description of substituent effects in this approach is expressed by a family of lines with a single explaining variable. The point of intersection, which is referred to as the iso-effect point, is not identical with the classic standard substituent - hydrogen - but is near to CN substituent. The approach given has the advantage of adopting a single substituent constant whose scale can be adjusted relatively precisely. Its drawback (like in the case of the correlation equations derived from the principle of separation of substituent effects) lies in a more extensive set of substituents needed for a correlation. The AISE principle has been applied to 318 series of experimental data describing effects of 32 substituents in a large variety of chemical models (aliphatic, alicyclic, aromatic, heteroaromatic, with or without direct conjugation between reaction centre and substituent) in both chemical reactions and equilibria. A comparison with two other correlation relations with two and three substituent constants for interpretation of substituent effects based on the principle of separation of the individual substituent effects showed that the closeness of AISE based correlations is comparable with that of the correlation equations currently used. It was somewhat less successful in the models with direct conjugation between reaction centre and substituent but the AISE principle can be used even in these cases.

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