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 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 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 TREATMENT OF CLASS I MALOCCLUSION WITH MILD CROWDING AND MIDLINE SHIFT

2020 ◽  
Vol 5 (2) ◽  
pp. 145
Author(s):  
Edwin Triwidianto ◽  
Ida Bagus Narmada
Keyword(s):  
Orthodontic Treatment ◽  
Class I ◽  
Facial Appearance ◽  
Midline Shift ◽  
Skeletal Class ◽  
Lower Jaw ◽  
The Face ◽  
Maxilla And Mandible ◽  
Flat Profile ◽  
Relationship Of

ABSTRACT  Background: The main goal of orthodontic treatment is to obtain a normal relationship of the teeth with facial structures and it is generally accepted that orthodontic treatment will have effects on facial proportion. Nowadays, facial appearance has a big influence on someone's appearance. Aesthetic facial appearance will produce a proportional, harmonious, and youthful facial profile. Case: this case report aims to describe that non extraction orthodontic treatment in class I malocclusion with mild crowding and mildline shift is a treatment with considerable success. Case management: A 19 years old female came with a chief complaint of crowding in upper and lower jaw. Intraoral examination revealed bilateral Class I molar and canine relationship. Patient had crowding in upper and lower jaw, and midline shift in lower jaw. Extra oral findings included a flat profile with competent lips. Cephalometric analysis showed skeletal class I with orthognati maxilla and mandible. Patient was bonded with 0.022-inch MBT brackets orthodontic appliance without extraction.  After 20 months of treatment, an ideal arch coordination was achieved, the patient felt confident and satisfied with the treatment outcome. Conclusion: Decision to extract a tooth has to be made, not only by considering the amount of crowding, but also the eventual influence of orthodontic tooth displacement on the soft tissue surface of the face. Keywords: Crowding, Midline shift, Non – extraction.

scholarly journals ACESSO TRANSCONJUNTIVAL NA ABORDAGAGEM DE FRATURA DO ASSOALHO ORBITAL: RELATO DE CASO

2017 ◽  
Vol 8 (1) ◽  
pp. 6
Author(s):  
Bruna Pedral Sampaio de Souza Dantas ◽  
Alana Del’Arco ◽  
Daniel Freitas ◽  
Roberto Almeida de Azevedo ◽  
Laise Tourinho
Keyword(s):  
Bone Structure ◽  
Complication Rates ◽  
Facial Bone ◽  
Nasal Bones ◽  
Recommended Treatment ◽  
Orbital Wall ◽  
Lower Complication ◽  
The Face ◽  
Medial Orbital Wall ◽  
Infraorbital Rim

Objective: Fractures in the face require approaches with predictable esthetic results, seeking access to minimize scars and to lower complication rates. Among the extraoral access to approach the infraorbital margin there are cutaneous accesses (subciliary, subtarsal and infraorbital) and Transconjunctival with some variations. The transconjuntivais access enable orbital floor display, infraorbital rim and medial orbital wall for placement of grafts, osteotomies and osteosynthesis, leaving imperceptible scars in the conjunctiva. The zygomatic complex is anatomically located in the midface and due to its anterior projection it is quite affected by trauma, and facial bone structure, after the nasal bones, more prone to fractures. Case Description: This paper discusses a clinical case on the transconjunctival access to orbitozygomatic fracture approach of a female patient JJC, 30, discussing their indications, techniques and complications. Conclusion: From the diagnosis, the recommended treatment was the transconjunctival access to approach orbitozygomatic fracture.

scholarly journals Correlation between Dentoalveolar Heights and Vertical Skeletal Patterns in Class I Malocclusion in Ethnic Javanese

2020 ◽  
Author(s):  
I Gusti Aju Wahju Ardani ◽  
Ike Sesaria Pratiknjo ◽  
Irwadi Djaharu’ddin
Keyword(s):  
Pearson Correlation ◽  
Class I ◽  
Posterior Teeth ◽  
Skeletal Class ◽  
Anterior Nasal Spine ◽  
Mandibular Plane ◽  
Lateral Cephalograms ◽  
Pearson Correlation Test ◽  
The Face ◽  
Orthodontic Patients

Abstract Objectives Vertical proportions of the face are important determining factors for diagnosis and planning appropriate orthodontic treatment. Orthodontic patients have different vertical and sagittal skeletal discrepancies, as well as associated varying degrees of dentoalveolar compensations. Dentoalveolar is a functional component of the jaw; it plays a role in occlusal dynamics and forms sagittal and vertical maxilla–mandibula relationships. This study aims to analyze the relationship between dentoalveolar heights and several vertical skeletal patterns in patients with Class I malocclusion in ethnic Javanese. Materials and Methods The sample consisted of lateral cephalograms of 75 patients (18 samples were male, and 57 were female). Determined by inclusion and exclusion criteria, the participants were selected from an initial sample of 196 patients with skeletal Class I malocclusion (sella–nasion–A and B [ANB] = 1–4 degrees). Cephalometric analysis was performed using OrthoVision2017 digital software. This analysis measured upper anterior dental height (UADH), upper posterior dental height (UPDH), lower anterior dental height (LADH), lower posterior dental height (LPDH), ANB angle, sella–nasion and mandibular plane (SN-MP), sella–nasion and palatal plane (SN-PP), palatal plane and mandibular plane (PP-MP), Frankfort horizontal plane and mandibular plane (FH-MP), sella to gonion (S-Go), articulare to gonion (Ar-Go), nasion to menton (N-Me), nasion to anterior nasal spine (N-ANS), and anterior nasal spine to menton (ANS-Me). Pearson correlation test was used to assess correlations among all variables (p < 0.05). Results Significant correlations were observed between dentoalveolar heights and SN-MP, S-Go, Ar-Go, N-Me, and ANS-Me (p < 0.05). Conclusions Patients with Class I malocclusion in ethnic Javanese exhibit a significant correlation between dentoalveolar and vertical skeletal patterns. UPDH and/or LPDH have a significantly positive correlation with SN-MP, S-Go, Ar-Go, N-Me, and ANS-Me. The orthodontic correction of the decreased or increased facial height included either the extrusion or intrusion of the anterior or posterior teeth in different ways.

scholarly journals Restoration of the Severely Resorbed Maxilla and Mandible using the Multicup Denture

2011 ◽  
Vol 2 (4) ◽  
pp. 346-349
Author(s):  
V Chandrakala
Keyword(s):  
Case Report ◽  
Soft Material ◽  
Complete Dentures ◽  
Natural Teeth ◽  
Suction Cups ◽  
Edentulous Patients ◽  
Maxilla And Mandible

ABSTRACT A basic concern of edentulous patients is retention of their dentures. This has led to considerable experimentation and research in efforts to perfect dentures that compensate for the loss of natural teeth. The use of multiple miniature suction cups made from a soft material lining the denture satisfies the requirements of retention and stability. A technique describing the fabrication of a maxillary and mandibular multicup dentures which are more beneficial than conventional complete dentures is discussed below with case report.

scholarly journals ENHANCING STABILITY: A REVIEW OF VARIOUS OCCLUSAL SCHEMES IN COMPLETE DENTURE PROSTHESIS

2013 ◽  
Vol 03 (02) ◽  
pp. 105-112
Author(s):  
Krishna Prasad D. ◽  
B. Rajendra Prasad ◽  
Anshul Bardia ◽  
Anupama Prasad D.
Keyword(s):  
Single Unit ◽  
Complete Denture ◽  
Complete Dentures ◽  
Advantages And Disadvantages ◽  
Natural Teeth ◽  
Edentulous Patients ◽  
The Stability ◽  
The Individual ◽  
Natural Tooth ◽  
The Ideal

AbstractA practical approach to rehabilitate the edentulous patients to optimal occlusion is not an easy task. Complete denture prosthesis when compared to natural teeth have relatively unstable bases and have no proprioception comparable to the periodontal ligament of the natural tooth and acts as the single unit instead of an individual tooth. To enhance the stability of the complete dentures, the philosophy of the balanced occlusion has been proposed. Balanced occlusion in dentures implies occlusal contacts that contribute to equilibrium of the denture bases on their respective ridges.The search for the ideal occlusal scheme, one which provides stability, comfort, function and esthetics is still underway. While there is little research to support one occlusal scheme over the other, it is known that the prosthesis is less efficient than natural teeth and the ability to chew with it varies with the individual, regardless of the occlusal schemes. Poor oral awareness makes it more difficult for a patient to adapt to the function with the prosthesis especially one with a complicated occlusal scheme. This article reviews several occlusal schemes, their characteristics, recommendations for usage along with their advantages and disadvantages.

scholarly journals Comprehensive Treatment of a Partially Edentulous Patient with Overdentures

2014 ◽  
Vol 4 (3) ◽  
pp. 185-189
Author(s):  
Jyoti Nadgere ◽  
Ganesh Pandurang Mengal
Keyword(s):  
Treatment Plan ◽  
The Other ◽  
Comprehensive Treatment ◽  
Complete Dentures ◽  
Edentulous Patient ◽  
Partial Denture ◽  
Masticatory Efficiency ◽  
Important Benefit ◽  
Natural Teeth ◽  
Edentulous Patients

ABSTRACT Treatment of partially edentulous patients with few remaining teeth is very challenging. These cases can be successfully treated with natural teeth supported overdentures. Comprehensive treatment plan with natural teeth supported overdentures saves the proprioceptive response of the teeth, along with other benefits such as improved masticatory efficiency, better retention, stability, support as compared to conventional tissue supported complete dentures. The other most important benefit of overdentures is the psychological security of well retaining dentures which increases patient's confidence level. This article presents a case report in which a partially edentulous patient was successfully rehabilitated with comprehensive treatment of maxillary natural teeth supported overdenture with locator attachment (Zest Anchors) and mandibular partial denture. How to cite this article Mengal GP, Ram SM, Nadgere J, Shah N. Comprehensive Treatment of a Partially Edentulous Patient with Overdentures. J Contemp Dent 2014;4(3):185-189.

scholarly journals Methods of Analysis of the Nasal Profile: A Systematic Review with Meta-analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Agnieszka Jankowska ◽  
Joanna Janiszewska-Olszowska ◽  
Maciej Jedliński ◽  
Katarzyna Grocholewicz
Keyword(s):  
Profile Analysis ◽  
Meta Analysis ◽  
Genetic Disorders ◽  
Facial Profile ◽  
Skeletal Class ◽  
Nasolabial Angle ◽  
Ethnic Variability ◽  
The Face ◽  
Bimaxillary Surgery ◽  
Nasal Development

The nose is the most prominent structure of the face, influencing facial appearance and profile. Orthodontists have an awareness of facial structures, including nasal morphology, when diagnosing and treatment planning. Maxillofacial surgeons influence facial profile by bimaxillary surgery, improving facial aesthetics and harmony. The aim of this review was to summarize the available methods of analysing nasal morphology and profile, and to assess their complexity. A literature search was conducted in PubMed, Scopus, Web of Science, and Embase using the following search terms: “nasal profile analysis”, “nasolabial angle”, and “nasal profile cephalometric” in order to select studies providing knowledge on correlations between occlusion and nasal development, differences between skeletal classes, ethnic variability, and differences between the sexes. Studies concerning genetic disorders were excluded. Finally, 17 full-text papers were analysed, which pertained to nasolabial angle, or facial profile including the nose. Data concerning methods, ethnic group, reference landmarks used, and measurements made were extracted and placed in tables. Numerous methods of nasal profile analysis can be found in the literature. These methods describe various numbers of parameters, which have influence on facial aesthetic. Nasal parameters are correlated to skeletal class and nasolabial angle, positions of upper incisors, and maxillary inclination.

scholarly journals Evolution of Chewing Force in Geriatric Edentulous Patients

2021 ◽  
Author(s):  
Byron Velásquez-Ron ◽  
María Galárraga-Criollo ◽  
María Romero-Guerrero ◽  
María Rodriguez-Tates ◽  
Flavio Pineda-Lopez
Keyword(s):  
Muscle Strength ◽  
Geriatric Patients ◽  
Complete Dentures ◽  
Jaw Movements ◽  
Occlusal Adjustment ◽  
Contact Points ◽  
Natural Teeth ◽  
Electromyographic Analysis ◽  
Edentulous Patients ◽  
Improve Stability

Abstract Objective The aim of this study was to assess the evolution of chewing force in edentulous geriatric patients rehabilitated with complete dentures. Chewing function is compromised in individuals who lose all their teeth, as well as in those with complete dentures. The maintenance and recovery of the chewing function in these patients require replacement of the lost natural teeth. Materials and Methods In this study, the chewing force was evaluated by electromyographic analysis of the temporalis and masseter muscle endings in 120 patients with old and new bimaxillary complete dentures. Results Replacement of complete dentures was shown to improve stability, retention, occlusion, and support of the prosthesis. All jaw movements were evaluated using electromyography to assess the evolution of chewing force with and without occlusal adjustment, identify premature contact points, identify occlusal interference, respect the balanced occlusal scheme, and assess the increase in muscle strength. This study found that muscle strength in patients with prosthesis without occlusal adjustment was 527.1 N but was higher for prostheses with occlusal adjustment at 614.7 N, and this strength of 614.7 N was maintained after 1 month of control. Conclusion The chewing force evolved in patients with complete dentures, and an increase was observed when occlusal adjustment was performed.

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