scholarly journals Comparison of vertical dimension of occlusion on edentulous and dentulous patients

2004 ◽  
Vol 51 (1) ◽  
pp. 7-11
Author(s):  
Ljiljana Strajnic
Keyword(s):  
Vertical Dimension ◽  
Class I ◽  
Control Group ◽  
Cephalometric Analysis ◽  
Complete Dentures ◽  
Skeletal Class ◽  
Clinical Methods ◽  
Natural Teeth ◽  
Edentulous Patients ◽  
Experimental Group

One of the existing methods for analysis of the vertical dimension of occlusion or occlusal face height is the cephalometric analysis of the distance from nasion to menton (N-Me). The vertical dimension of occlusion was measured in 30 lateral cephalometric radiographs of edentulous patients (experimental group), with models of complete dentures after clinical methods of determining the vertical and horizontal intermaxillary relation and 30 lateral cephalometric radiographs of participants with natural teeth (control group). The aims of the present study were: to analyse the vertical dimension of occlusion in participants with natural teeth skeletal class I, to cephalometrically evaluate the reconstructing vertical dimension of occlusion of edentulous patients skeletal class I , to compare examined variables between individuals with natural teeth and edentulous patients. The results indicated a remarkable correlation in the vertical dimension of occlusion established initially for the edentulous patients when compared with the measurements made for dentulous patients. The results showed the vertical dimension of occlusion span a range between 106,7 - 138 mm (X _ =122,24) in subjects with natural teeth. In edentulous patients the values of vertical dimension of occlusion span ranged between 109,8 - 141,6 mm (X _ =122,46). The vertical dimension of occlusion in male participans was increased in the group of persons with natural teeth as well as in edentulous patients. The results of t-test proved that there were no statistically significant differences in examined variables between persons with natural teeth and edentulous patients (p>0,01).

scholarly journals Cephalometrically analysis of the convexity angle

2003 ◽  
Vol 50 (3) ◽  
pp. 124-128
Author(s):  
Ljiljana Strajnic
Keyword(s):  
Bone Structure ◽  
Class I ◽  
Complete Dentures ◽  
Facial Bone ◽  
Facial Profile ◽  
Skeletal Class ◽  
Clinical Methods ◽  
The Face ◽  
Natural Teeth ◽  
Edentulous Patients

The convexity angle of facial bone structures ( N-A: A-Pg) expresses the sagittal protrusion of the maxillary part of the face compared to facial profile (the convex or concave face).The convexity angle is defined as the angle colligated by the lines N-A and A-Pg. The aims of the present study were: to analyse the convexity angle in participants with natural teeth skeletal class I, to cephalometrically evaluate the reconstructing angle of hard facial profile structures of edentulous patients skeletal class I, to compare examined variables between individuals with natural teeth and edentulous patients. The control group consisted of 30 lateral cephalometric radiographs of participants with natural teeth skeletal class I. The experimental group consisted of 30 lateral cephalometric radiographs of edentulous patients, with models of complete dentures after clinical methods of determining the vertical and horizontal intermaxillary relation. Analysis of the convexity angle was done in cephalometric radiographs by Downs metod. The results showed the facial bone structure convexity angle span a range between -13? and 10? (X= 0.45?) in subjects with natural teeth. In edentulous patients the values of facial bone structure convexity angles span a range between -5? and 10? (X=1.7?). The results of t-test proved that there were no statistically significant differences in examined variables between persons with natural teeth and edentulous patients (p>0.05). The conclusion is that clinical methods of determining the sagittal protrusion of the maxillary part of the face against the facial profile of edentulous patients used in the designing procedures of complete dentures were reliable enough in reconstruction of examined angles of hard facial profile structures.

scholarly journals Application of cephalometric analysis for determination of vertical dimension of occlusion: A literature review

2012 ◽  
Vol 65 (5-6) ◽  
pp. 217-222 ◽  
Author(s):  
Ljiljana Strajnic ◽  
Darinka Stanisic-Sinobad
Keyword(s):  
Precise Determination ◽  
Complete Denture ◽  
Vertical Dimension ◽  
Cephalometric Analysis ◽  
Rest Position ◽  
Clinical Methods ◽  
Extraction Period ◽  
Edentulous Patients ◽  
Clinical Determination

Introduction. Optimal reconstruction of vertical dimension of occlusion is crucial for functional and physiognomic rehabilitation of edentulous patients. This article is aimed at presenting attitudes and studies on application of cephalometric analysis in obtaining optimal vertical dimension of occlusion. The review of literature presents the studies which analyse the possibilities of cephalometric analysis aimed at improving the clinical methods for vertical dimension of occlusion determination in treatment of edentulous patients. The research carried out so far can roughly be divided into: cephalometric vertical dimension of occlusion evaluation in dentulous patients performed to determine precise indicators of vertical dimension of occlusion and to establish cephalometric standards for practical application in prosthodontics; the method of producing pre-extraction cephalometric registries involves the production of cephalometric radiographs for potential prosthodontic patients in dental pre-extraction period which are kept for reference to be used in later therapy; the cephalometric method of registering the position of physiologic rest position of the mandible involves measuring cephalometric parameters in cephalometric radiographs made when the mandible is in physiologic rest position; cephalometric evaluation of vertical dimension of occlusion in complete denture therapy after clinical determination of intemaxillary relationship is recommended for timely detection of possible mistakes, with a possibility of correction in the process of complete denture production; and cephalometric analysis in edentulous patients with old complete dentures for a planned vertical dimension of occlusion extension. Conclusion. Data from the literature give no proof of a scientific and universally accepted method for precise determination of vertical dimension of occlusion, which is a point many authors agree upon. Different methods proposed for vertical dimension of occlusion determination in everyday practice are usually recommended in combination with other methods. Determination of individual, morphological vertical dimension of occlusion indicators by cephalometric analysis is, in this sense, one of the directions for finding a better solution when planning an artificial occlusion complex.

scholarly journals Cephalometric Approach to Vertical Facial Height

2019 ◽  
Vol 9 (1) ◽  
pp. 54-58
Author(s):  
Suvit Maskey ◽  
Rosha Shrestha
Keyword(s):  
Class I ◽  
P Value ◽  
Cephalometric Analysis ◽  
Prosthetic Rehabilitation ◽  
Skeletal Class ◽  
Facial Height ◽  
Significant Difference ◽  
The Face ◽  
Edentulous Patients ◽  
Vertical Height

Introduction: The vertical heights and the proportions are very important for balance of the face and attractiveness along with the good smile. Harmonious vertical proportions and the Antero-posterior relations contribute to aesthetics. Therefore it is necessary to determine the vertical facial height and the ratios in treatment planning of the patients. The aims and objectives of this study are to compare the vertical facial heights of patients considering the Lower Anterior Facial Height (LAFH), the Upper Anterior Facial Height (UAFH), Total Anterior Facial Height (TAFH) and Posterior Facial Height (PFH) among the sexes in Class I skeletal group obtained from cephalometric analysis. Materials & Method: The study material comprised of 52 patients (24 males and 28 females) and lateral cephalometric radiographs were traced with Skeletal Class I relationship. Cephalometric analysis was performed by using hand tracing. Independent t tests were used for comparisons. Result: The total anterior facial height (TAFH), lower anterior facial height (LAFH), upper anterior facial height (UAFH), total posterior facial height (TPFH) measurements showed no significant differences between both sexes in Skeletal Class I group but statistically significant difference in ratios of posterior facial height and total anterior facial height and also there was statistically significant differences in the ratio between upper facial height and the total anterior facial height (p value <0.05). Conclusion: This cephalometric analysis can be applied to determine the vertical height of occlusion which can be helpful in prosthetic rehabilitation of edentulous patients.

scholarly journals Cephalometric analysis for accurately determining the vertical dimension: a case report

2017 ◽  
Vol 2 (1) ◽  
pp. 52
Author(s):  
Wahipa Wiro ◽  
Ike D. Habar
Keyword(s):  
Case Report ◽  
Bone Growth ◽  
Human Life ◽  
Vertical Dimension ◽  
Cephalometric Analysis ◽  
Stomatognathic System ◽  
Orofacial Region ◽  
Natural Teeth ◽  
Growth Changes ◽  
Edentulous Patients

Objective : Determination of the vertical dimension of occlusion (DVO) tends to changes throughout the human life. The vertical dimension is determined by the interocclusal point of the upper and lower teeth contact so the application is limited when the natural teeth was missing. As the result, many functional and aesthetic changes are occurred in the whole orofacial region and stomatognathic system. DVO is one of the difficult stages in prosthodontic treatment. Most of the techniques to determine DVO in edentulous patients are based on the soft tissue references, which can cause the different measurements. Cephalometric analysis allows the evaluation of bone growth changes and can be used as a diagnostic tool in prosthodontics to evaluate the results of prosthodontic rehabilitation.Methods : The purpose of this case report was to find out the results of the vertical dimension of occlusion measurements in maxillomandibular relation by using cephalometric photo in patients who have been long lost their teeth and have never been using denture.Results : A 50 year old female patient, partially edentulous on the upper and lower jaw with the remaining teeth were 12 (residual root), 11,21,23,33 and 43. The remaining teeth were endodontically treated prior the complete denture procedure. Cephalometric photo was done in patients after making bite rim, upper and lower bite rim were given metal marker, the image was traced, then measured between metal to get the vertical dimension of occlusion.Conclusion : The measurement results of the vertical dimension of occlusion by using cephalometric photo on making full denture were more accurate, so it could improve and restore the masticatory function, aesthetic function and phonetics.

scholarly journals Evaluation of cephalometric parameters in determining the position of anterior teeth

2003 ◽  
Vol 50 (2) ◽  
pp. 76-81
Author(s):  
Ljiljana Strajnic ◽  
Predrag Vucinic
Keyword(s):  
Class I ◽  
Control Group ◽  
Anterior Teeth ◽  
Cephalometric Radiograph ◽  
Edentulous Patients ◽  
Lower Incisors

In the study the cephalometric method was used to determine the position of the artificial central upper and lower incisors of edentulous patients class I, and natural central upper and lower incisors of dentulous individuals class I. Cephalometric radiographs of edentulous patients were made with a precisely set position of frontal teeth and marked central incisors. The control group consisted of 30 lateral cephalometric radiographs of dentulous persons class I. Certain of Schwartz and Steiner cephalometric radiograph analysis were used for precise sagittal positioning of upper and lower central incisors. To set precisely the position of these teeth in a sagittal position, the inclination of their axle was analyzed on each cephalometric radiograph, as well as the position of their vestibular surfaces related to the specific craniofacial elements. Statistically significant differences of the value of the angle of inclination of artificial upper and lower incisors of edentulous patients class I, and the angle of inclination of natural upper and lower incisors of dentulous persons, class I, were determined.

scholarly journals Evaluation of tongue posture & dimensions in relation to skeletal Class I and Class II patterns- A cephalometric study

2021 ◽  
Vol 7 (4) ◽  
pp. 276-281
Author(s):  
Puja Khanna ◽  
Sumit Chhabra ◽  
Preeti Munjal ◽  
Sunny Mittal ◽  
Nishtha Arora
Keyword(s):  
Statistical Tests ◽  
Class Ii ◽  
Class I ◽  
Control Group ◽  
Skeletal Class ◽  
Normal Occlusion ◽  
Division 1 ◽  
Skeletal Pattern ◽  
Bonferroni Test ◽  
Class Ii Division 1

Association of tongue posture with dental and facial skeletal pattern have been suggested in past. This study was undertaken to assess tongue posture and dimensions in Class I and Class II Dentoskeletal patterns to determine whether any correlation exists between tongue posture and skeletal pattern of an individual. Cephalograms of 150 individuals (aged 18-23 years), taken in Natural Head Position (NHP) and tongue at rest were divided into three groups i.e. Group 1 – Class I Normal occlusion, Group 2 – Class II Division 1 Normodivergent and Group 3 – Class II Division 1 Hypodivergent, consisting of 50 samples each. To ensure the rest position of tongue, patient was asked to relax for 30 seconds after coating the tongue with barium sulphate in midline and then to swallow, and the X-ray was taken at the end of swallowing. Each group was divided into two subgroups according to sex. Groups were constituted according to the Frankfort mandibular plane angle (FMA) angle. The subjects who had skeletal Class II pattern due to mandibular retrusion and not due to maxillary prognathism were only included in the study group. Statistical analysis was done using the software SPSS version 21.0. The statistical tests used were unpaired t-test and One-way ANOVA test with post-hoc bonferroni test. The p-value was considered significant if less than 0.05.The dorsum of the tongue was higher at back and lower in front in Class II Division 1 Hypodivergent group as compared to Class I Normal occlusion group (P&#60;.05). Tongue height and tongue length were significantly reduced in Class II Division 1 Normodivergent and Class II Division 1 Hypodivergent malocclusion groups when compared to Class I control group (P&#60;.05).The study supports the existence of a relationship between posture & dimensions of the tongue with Class I and Class II skeletal patterns.

scholarly journals Computerized cephalometric evaluation of changes following treatment with complete dentures

2012 ◽  
Vol 65 (3-4) ◽  
pp. 163-167
Author(s):  
Ljiljana Strajnic ◽  
Branka Miskovic
Keyword(s):  
Longitudinal Analysis ◽  
Computer Software ◽  
Complete Denture ◽  
Cephalometric Analysis ◽  
Complete Dentures ◽  
Longitudinal Evaluation ◽  
Facial Height ◽  
Cephalometric Radiograph ◽  
Edentulous Patients ◽  
Diagnostics And Therapy

The aim of this study was to provide longitudinal evaluation of the changes after complete dentures therapy and the rate of residual ridge resorption through a six-year period of denture wearing. The authors presented the case of a 76-year-old patient, edentulous for twelve years, wearing complete dentures for six years, with the eugnat jaw relationship. Cephalometric radiograph was carried out in the process of new complete denture production, while the evaluation was carried out after six years. Cephalometric analysis was performed by using ?Dr. Ceph? computer software (FYI Technologies, GA, USA). After six years, the reduction of anterior total facial height was 5.5 mm and the anterior lower facial height was 5.5 mm, the vertical residual ridge reduction of the maxilla was 1.4 mm and the reduction of the mandible was 3mm. The study confirms the reliability and advantages of cephalometric analyses and reveals their application possibilities in prosthetic diagnostics and therapy, as well as in evaluation of rehabilitative results in edentulous patients and longitudinal analysis of changes on the orofacial complex tissues and intemaxillary relationships.

scholarly journals Consequences of Dental Occlusion Enhancement by Means of Metal Crowns on the Animal Model

2019 ◽  
Vol 69 (12) ◽  
pp. 3517-3519
Author(s):  
Ana Ispas ◽  
Antarinia Craciun ◽  
Liana Lascu ◽  
Marcela Elisabeta Barbinta Patrascu ◽  
Mariana Constantiniuc
Keyword(s):  
Oxidative Stress ◽  
Animal Model ◽  
Free Radicals ◽  
Wistar Rats ◽  
Vertical Dimension ◽  
Dental Occlusion ◽  
Control Group ◽  
Experimental Group ◽  
Plasma Malondialdehyde

The purpose of this study was to determine whether there is a correlation between induced occlusal trauma and the occurrence of oxidative stress in the hippocampus. Twenty Wistar rats were randomized into three experimental groups and one control group. Animals in the experimental group were cemented modified crowns on molars to induce occlusal trauma in 7, 14 and 30 days. To evaluate the oxidative stress, blood was drawn from the hippocampus at 7, 14 and 30 day intervals. Oxidative stress was evaluated using the following specific tests: determination of plasma malondialdehyde and serum glutathione values. The results of the study demonstrate that malocclusion experienced by raising the vertical dimension in rats resulted in significant reductions in antioxidants and increase level of free radicals.

scholarly journals Characteristics of soft tissue profile in patients with skeletal class III

2006 ◽  
Vol 53 (3) ◽  
pp. 166-173 ◽  
Author(s):  
Zorana Stamenkovic ◽  
Nenad Nedeljkovic
Keyword(s):  
Soft Tissue ◽  
Clinical Examination ◽  
Vertical Direction ◽  
Control Group ◽  
Class Iii ◽  
Skeletal Class ◽  
Skeletal Malocclusion ◽  
Soft Tissue Profile ◽  
School Of Dentistry ◽  
Experimental Group

Introduction: Patients with skeletal class III have typical characteristics of soft tissue profile. Aim: The aim of this study was to determine characteristics of soft tissue profile in patients with skeletal class III and to find possible significant differences between these patients and patients in the control group (without malocclusion in sagittal direction). Methods: Twenty patients of the Department of Orthodontics, Belgrade School of Dentistry, were included in this study. Average age in this group was 8 years and 5 months. In experimental group there were 13 girls and 7 boys. Changes in soft tissue profile by clinical examination, photographic and cephalometric analysis were determinated during the whole diagnostic procedure. In the clinical examination, type of profile, characteristics of lips, facial harmony in vertical direction and the angle of mandibular plane were analyzed. On lateral cephalometrics, the following parameters were measured and analyzed: sagittal parameters SNA, SNB and ANB and parameters in Schwarz, Ricketts and Holdaway analysis of soft tissue profile. Results: Patients in the experimental group had significantly different changes in soft tissue profile. It was the consequence of existing skeletal malocclusion in sagittal direction. Statistically, differences were significant (p<0.01) Conclusion: Measurements and analysis showed that patients had typical severe concave profile. Most often, the position of soft tissue structures did not compensate skeletal anomalies.

scholarly journals Three-dimensional analysis of molar compensation in patients with facial asymmetry and mandibular prognathism

2015 ◽  
Vol 86 (3) ◽  
pp. 421-430 ◽  
Author(s):  
Svetlana Tyan ◽  
Hong-Sik Park ◽  
Munkhshur Janchivdorj ◽  
Sun-Ho Han ◽  
Su-Jung Kim ◽  
...  
Keyword(s):  
Facial Asymmetry ◽  
Root Apex ◽  
Occlusal Plane ◽  
Control Group ◽  
Class Iii ◽  
Mandibular Prognathism ◽  
Skeletal Class ◽  
Mandibular Asymmetry ◽  
Experimental Group ◽  
Maxillary Arch

ABSTRACT Objective:  To evaluate the characteristic transverse dental compensations in patients with facial asymmetry and mandibular prognathism and to compare features of dental compensations between two types of mandibular asymmetry using 3-dimensional (3D) cone-beam computed tomography (CBCT). Materials and Methods:  Seventy-eight adult patients with skeletal Class I (control group; n  =  33; 19 men and 14 women) or skeletal Class III with facial asymmetry (experimental group; n  =  45; 23 men and 22 women) were included. The experimental group was subdivided into two groups according to the type of mandibular asymmetry: translation type (T-type; n  =  20) and roll type (R-type; n  =  19). CBCT images were acquired before orthodontic treatment and 3D analyses were performed. Results:  The transverse dental distance was significantly different between the two groups only at the palatal root apex of the maxillary first molar (P &lt; .05). In the experimental group, the first molar axes were compensated significantly on both arches except the maxillary nondeviated side. The vertical molar heights were different between the two groups only on the maxillary arch (P &lt; .001). The R-type showed greater mandibular ramal length difference and menton deviation than the T-type (P &lt; .001). In the R-type, transverse compensation of the maxillary first molars was more obvious than with the T-type, which resulted in canting in the maxillary occlusal plane. Conclusions:  Mandibular asymmetry with prognathism showed a characteristic transverse dental compensation pattern. The mandibular asymmetry type influenced the amount and direction of molar compensation on the maxillary arch.

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