MEDIAN LINE IMMETRITY AT CENTRIC OCCLUSSION IN FKG UNMAS DENPASAR

Introduction: Facial appearances especially teeth and face are some of the most important things in this era. The symmetry of the dental median line with the facial median line needs to be considered to create a balanced, harmonious, and attractive facial structure, especially when smiling. The position of the maxillary median line to the facial median line is an important factor in orthodontic diagnosis. This research aims to obtain the symmetry of the dental median line with the facial median line during centric occlusion in dentistry students of the Mahasaraswati University of Denpasar. Materials and Methods: The type of this research is descriptive with a cross-sectional approach that involved 57 participants. Results and Discussions: The results of this research are the percentage of the students whose dental median line with a facial median line is symmetrical (≤ 1 mm) was 77% that obtained 44 participants, while the percentage of students who had a dental median line with a facial median line is not symmetrical (> 1 mm) were 23 % that obtained 13 participants with a shift of median line 2 mm in 7 participants, 3 mm in 5 participants, and 5 mm in 1 participant. Conclusion: Based on the results it can be concluded that the dentistry students of the Mahasaraswati University of Denpasar whose dental median line with their facial median line were symmetrical is more dominant.

Correction of a Class III Malocclusion with a Functional Shift and Severe Crowding

A forward functional shift of the mandible is a significant problem that can cause both functional and aesthetic complications for many patients. This shift usually occurs in growing patients, and it is unusual to see in adult patients. This case report shows an adult patient with a forwarding functional shift that caused both anterior and posterior crossbites with a pseudo class III dental and skeletal relationship. The patient also showed severe upper arch crowding with blocked-out canines and mild crowding in the lower arch. The treatment of this patient involved extraction of the upper right and left first premolars and the lower right first premolar, followed by opening of the bite to relieve the neuromuscular reflex of the forward protrusion of the mandible during centric occlusion and to correct both the anterior and posterior crossbites. Extraction spaces were closed using class III elastics and elastomeric chains. At the end of the treatment, good functional and aesthetic results were obtained after the elimination of the forward functional shift.

Cephalometric Norms in an Omani Adult Population of Arab Descent

Objectives: This study aimed to establish cephalometric norms for an Omani population of Arab descent and to compare these with established cephalometric values for Caucasians. Methods: This cross-sectional studywas conducted at the Military Dental Centre and Oman Dental College in Muscat, Oman, between May 2014 and October 2016. A total of 150 Omani patients between 20–29 years old seeking orthodontic treatment were included. All participants had a symmetrical face, class I molar and canine relationships, proper intercuspation, a normal overjet/overbite (<3 mm) and mild spacing/crowding of the teeth (≤3 mm). Lateral cephalography was performed in centric occlusion with the lips relaxed and the head in a natural position. Cephalometric measurements were then compared with Eastman Standard norms. Results: The Omani subjects were found to have a slightly retrusive maxilla, an increased angle between the maxillary and mandibular planes and shorter facial heights in comparison to the Eastman Standard norms. Furthermore, incisor relations were edge-to-edge in nature and the interincisal angle was reduced, suggesting that the Omani subjects had more proclined incisors. In addition, the lips were more protrusive and the nasolabial angle was more obtuse. Conclusion: In the Omani sample, increased proclination of the incisors was observed in comparison to Eastman Standard norms. As such, slightly more proclined incisors should be considered acceptable and natural among Omani patients of Arab descent. The cephalometric findings of this study may be helpful in the diagnosis and treatment planning of orthodontic problems among Omanis of Arab descent.Keywords: Cephalometry, standards; Population Characteristics; Ethnic Groups; Arabs; Orthodontics; Oman.

Restoring of Vertical Dimension in a Patient with Retrodiscal Pressure

When oral rehabilitation is performed, an important consideration is to reach an orthopedic stabilization, at the end of the treatment. This condition depends on the Temporomandibular Joint and all neuroclusomuscular components. To achieve this, it is necessary to take into account different parameters such as centric occlusion and vertical dimension. In doing so, we decrease the likelihood of different neuroclusomuscular problems, such as Temporomandibular Joint Disorders, Bruxism, periodontal problems, abfractions, fracture of restorations, among others.

Primary second molar relations in preschool-aged children

Introduction: The primary second molar relation is also called the terminal plane, which is the relation between the distal surface of the maxillary and mandibular second primary molars in a centric occlusion position. One of the most important characteristics of the ideal occlusion development on the primary dentition is if the primary second molar relation classified as the flush terminal plane. This relation plays a significant role in determining the relation in permanent molar because the eruption of the first permanent molars are guided by the distal surface of the maxillary and mandibular second primary molars. The purpose of this study was to found out the clinical description of the primary second molar relation among the preschool-aged children in four kindergartens in Banda Aceh. Methods: This study was a descriptive study with cross-sectional study approach. The subject selection method was performed with a purposive sampling method involving as much as 37 subjects, which were students of State Kindergarten of Pembina 1, State Kindergarten 2, State Kindergarten 3, and State Kindergarten of Adidarma 4, Banda Aceh. The examination was performed by using the intraoral mirror when the teeth were in the centric occlusion position. Decisions regarding the primary second molar relation were made by the bilateral occlusion (left and right). Results: The flush terminal plane was found in 45.9% of all respondents, the mesial step was 54.1%, and the distal step was 0.0%. Conclusion: The primary second molar relation among preschool-aged children generally had the mesial step.

Effects of strong bite force on the facial vertical dimension of pembarong performers

Background: A pembarong performer is a reog dancer who bites on a piece of wood inserted into his/her mouth in order to support a 60 kg Barongan or Dadak Merak mask. The teeth supporting this large and heavy mask are directly affected, as the strong bite force exerted during a dance could affect their vertical and sagital facial dimensions. Purpose: This study aimed to examine the influence of the bite force of pembarong performers due to their vertical and sagital facial dimensions. Methods: The study reported here involved fifteen pembarong performers and thirteen individuals with normal occlusion (with specific criteria). The bite force of these subjects was measured with a dental prescale sensor during its centric occlusion. A cephalometric variation measurement was subsequently performed on all subjects with its effects on their vertical and sagital facial dimensions being measured. Results: The bite force value of the pembarong performers was 394.3816 ± 7.68787 Newtons, while the normal occlusion was 371.7784 ± 4.77791 Newtons. There was no correlation between the bite force and the facial sagital dimension of these subjects. However, a significant correlation did exist between bite force and lower facial height/total facial height (LFH/TFH) ratio (p = 0.013). Conversely, no significant correlation between bite force and posterior facial height/total facial height (PFH/TFH) ratio (p = 0.785) was detected. There was an inverse correlation between bite force and LFH/TFH ratio (r = -.464). Conclusion: Bite force is directly related to the decrease in LFH/TFH ratio. Occlusal pressure exerted by the posterior teeth on the alveolar bone may increase bone density at the endosteal surface of cortical bone.

Nonsurgical Management of Adult Skeletal Class 3 with Deep Bite utilizing Mini-implants

ABSTRACT Introduction Malocclusions with anterior crossbite are a major esthetic and functional concern for patients. This case report presents a 27-year-old Syrian female who was diagnosed with a class 3 malocclusion, combined with anterior crossbite, deep bite, concave profile, and inadequate maxillary incisor exposure. There was a centric occlusion (CO)/centric relation (CR) discrepancy and the mandible could be manipulated to near edge-to-edge incisal relation. Correction was done by class 3 intermaxillary elastics on upper and lower mini-implants for the first 6 months, followed by preadjusted edgewise appliance. The objective of implantsupported elastics was to adapt the patient for the CR condylar position without dental effect. Treatment was completed in 24 months with satisfactory dental and facial relationship. How to cite this article Alhalabi AG, Mahaini S, Shebib G, Darwich K, Mahaini L. Nonsurgical Management of Adult Skeletal Class 3 with Deep Bite utilizing Mini-implants. J Contemp Dent Pract 2017;18(1):65-68.