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vertical dimension of occlusion

Federico Gelpi, Daniele De Santis, Simone Marconcini, Francesco Briguglio, Marco Finotti
This clinical report illustrates a multidisciplinary approach for the rehabilitation of a young adult patient affected by a bilateral edentulous space and an anterior deep bite. The patient required orthodontics and surgical corticotomy and implantology (both performed with a piezo device). A multidisciplinary planning approach, including orthodontics, oral and periodontic surgery, and restorative dentistry, has an important role in the final outcome of treatment. In fact a dental class I occlusion has been established only on the right side...
December 2015: Int J Implant Dent
Dileep Nag Vinnakota, Krishna Chaitanya Kanneganti, Mahesh Pulagam, Gopala Krishna Keerthi
PURPOSE: To hypothesize a new theory based on soft tissue reference points on lateral profile photographs (LPPs) for determining the vertical dimension of occlusion (VDO), as there is need to explore for simple strategies. MATERIALS AND METHODS: Fifty-three participants in the age range of 20-27 years who met the inclusion criteria were recruited. LPPs were taken for all participants using standard protocol and duplicate copies obtained, on which five soft tissue reference points, nasion (Stn), subnasale (Stsn), porion (Stp), gnathion (Stgn), and gonion (Stg) (Stg prenoted on the face) were marked and joined to form angles; distance between Stsn and Stgn was considered as VDO in LPP (VDO-LP)...
October 2016: Journal of Indian Prosthodontic Society
X P Luo
Tooth wear has complex and multi-factorial etiologies that result in the surface loss of dental hard tissues. Clinic prevention and restorative technology of tooth wear are challenge for dentists with the increasing numbers of population and the transition of disease age. From the etiology and classification of tooth wear, it is crucial to accurately assess and diagnose a patient presenting with tooth wear. Fluoride application, sealant and resin bonded restoration are beneficial to manage the mild tooth wear...
October 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Jeong Joon Han, Jong-Hyon Chong, Sun-Youl Ryu, Hee-Kyun Oh, Hong-Ju Park, Seunggon Jung, Min-Suk Kook
OBJECTIVES: This study aimed to compare preoperatively predicted rotational relapse with actual post-treatment mandibular position after mandibular setback surgery via the surgery-first approach and to evaluate the effect of the increase of vertical dimension (VD) on surgical occlusion and the amount of mandibular setback on postoperative mandibular positional changes. STUDY DESIGN: Twenty-nine patients who underwent bilateral sagittal split ramus osteotomy for mandibular prognathism were evaluated by using lateral cephalograms, which had been obtained preoperatively, immediately postoperatively, and immediately after debonding...
July 30, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Francesco Ravasini, Matteo Fornari, Mauro Bonanini
BACKGROUND: The use of photogrammetry may be a new method to quantify the amount of artificial dental material removed from the surface of each teeth during the grind procedure (SG). SG is necessary in each denture to reach a correct occlusion. It consists in a refine action on the prosthesis teeth's surface using milling machine tools, aimed to remove the interferences (pre-contacts) between upper and lower teeth during chewing. This measure is achieved after a comparison between pre and post-grinding 3D models...
December 2016: Minerva Stomatologica
Claúdia Arruda, Gabriela Artico, Roseli Freitas, Antônio Filho, Dante Migliari
INTRODUCTION: Predisposing factors in chronic hyperplastic candidosis (CHC) have been poorly recognized. This study aimed at assessing the prevalence of Candida spp. in areas of the oral mucosa showing greater prevalent rate of CHC, such as the retrocomissural area, the lateral borders of the tongue, and the hard-palate mucosa in four groups of individuals presenting predisposing factors as follows: Smoking habits (group I); patients with low salivary flow rate (SFR) (hyposalivation - group II); patients with loss of vertical dimension of occlusion (LVDO -group III); and control subjects (group IV)...
2016: Journal of Contemporary Dental Practice
Karunakar Shetty, Mahesh Kumar, Susan Amanna, Srirangarajan Sridharan, Satyanarayan Reddy
This clinical case report describes the multi-disciplinary approach in the management of an unusual presentation of idiopathic multiple unerupted impacted permanent teeth in a 20-year-old female patient. The case was unique in that, not only were there multiple missing permanent teeth, but also over retained deciduous teeth and attrited existing permanent teeth with loss of vertical dimension of occlusion. Since the patient was young, it was decided to retain all the erupted permanent teeth and extract the infected deciduous teeth with the objective of fabricating overlay complete dentures...
July 2016: Journal of Indian Prosthodontic Society
J-C Chou, A Nelson, D Katwal, E N Elathamna, M T Durski
Changes in occlusal vertical dimension (OVD) and age have been found to affect Smile Index (SI, width/height of smile). Limited information is available regarding the aesthetic effects of these changes. The objective of this study was to evaluate the attractiveness of digitally manipulated smile images with differences in SI and incisal edge position (IEP) judged by respondents in different age groups. A total of 12 smile images were generated with varying SI (3·5, 5·3, 7·2, 9·0) and IEP (High, Medium, Low)...
November 2016: Journal of Oral Rehabilitation
Mio Makiguchi, Yukiha Funaki, Chiho Kato, Hidemasa Okihara, Takayoshi Ishida, Tadachika Yabushita, Satoshi Kokai, Takashi Ono
OBJECTIVE: Malocclusion with deep overbite and facial esthetics improve when facial height is intentionally increased during orthodontic extrusion of the posterior teeth. Thus, a better understanding of post-treatment stability of increased occlusal vertical dimension (iOVD) in adult patients is important. We focused on the jaw-opening reflex (JOR), which plays an important role in the control of jaw movements during mastication, and investigated the effects of iOVD on the JOR in rats with an electrophysiological technique...
August 10, 2016: Archives of Oral Biology
Mario F Romero, Thomas A DeRosa
Prosthetic rehabilitation of edentulous patients can sometimes pose many clinical challenges for the clinician. The importance of correct vertical and horizontal positioning of the anterior teeth so that the completed denture is esthetically pleasing while being functionally correct has been well documented in the literature. Different techniques have been proposed whereby a conventional occlusal rim is used. The wax-rim thickness of this design can interfere with the neutral zone, making normal phonetics difficult...
June 2016: Compendium of Continuing Education in Dentistry
SeungWoo Baeg, SungWoon On, JeongKeun Lee, SeungIl Song
BACKGROUNDS: Insufficient intermaxillary space is caused by non-restoration following tooth extraction in the past, and this involves eruption of the opposing teeth and changes of the arch structure. Such cases are difficult just by a simple prosthetic approach, and diversified treatment plans should be established. Among these, posterior maxillary segmental osteotomy (PMSO) is an efficient treatment option than extraction of opposing teeth as it surgically repositions multiple erupted teeth and alveolar bone...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
Vandana Katyal, Benedict Wilmes, Manuel Nienkemper, M Ali Darendeliler, Wayne Sampson, Dieter Drescher
INTRODUCTION: The aim of the present study was to assess the skeletal, dental and soft tissue effects of a specific treatment protocol in consecutively treated patients who presented with a Class III malocclusion. Treatment involved the use of a Hybrid Hyrax (HH) in the maxilla, a Mentoplate in the mandible and the application of continuous intra-oral Class III elastics. METHOD: The treated group was comprised of seven males and seven females (mean pretreatment age 10...
May 2016: Australian Orthodontic Journal
Francesca Vailati, Sylvain Carciofo
A full-mouth rehabilitation should be correctly planned from the start by using a diagnostic wax-up to reduce the potential for remakes, increased chair time, and laboratory costs. However, determining the clinical validity of an extensive wax-up can be complicated for clinicians who lack the experience of full-mouth rehabilitations. The three-step technique is a simplified approach that has been developed to facilitate the clinician's task. By following this technique, the diagnostic wax-up is progressively developed to the final outcome through the interaction between patient, clinician, and laboratory technician...
2016: International Journal of Esthetic Dentistry
Petra C Guess Gierthmuehlen, Enrico Steger
Dental erosion is a global oral health problem that can lead to significant functional and esthetic impairments of the affected patients. Treatment of severe cases with augmented loss of the vertical dimension of occlusion (VDO) represents a challenge for both the dental team and the patient. CAD/CAM technology was used in the presented case to analyze the interocclusal space. Based on a virtual wax-up of the final restorations, CAD/CAM-fabricated preparation splints served as a guide and ensured a most minimally invasive preparation design...
May 2016: Compendium of Continuing Education in Dentistry
Len Tolstunov, Marshall Brickeen, Vladislav Kamanin, Srinivas M Susarla, Firat Selvi
To find out whether the angulation of mandibular third molars is associated with the thickness of the bone at the site of impaction, and if so, which particular angulation affects the protective mechanism of the nerve, we retrospectively studied the thickness of lingual bone at the sites of impaction of 200 mandibular third molars in 149 patients using coronal, sagittal, and axial slices of cone-beam computed tomograms (CT). We measured the bone at the cementoenamel junction of the mandibular second molar, at the mid-root of the third molar, and at the apex of the root...
July 2, 2016: British Journal of Oral & Maxillofacial Surgery
Bernadette A M M Sterenborg, Thomas J J Maal, Rinaldo D Vreeken, Bas A C Loomans, Marie-Charlotte D N J M Huysmans
OBJECTIVE: The purpose of this study was to evaluate the 3D-stereophotogrammetry technique to detect differences in facial appearance after a simulated rehabilitation. MATERIALS AND METHODS: Eleven volunteers without tooth wear participated. A 3D-stereophotograph was taken in five different situations: resting position, teeth in occlusion, and teeth in occlusion with a 1 mm-, 3 mm- or 5 mm resin block between the first molars. Cephalometric measurements were performed on the 3D-stereophotographs using the software program Maxilim(®) (Medicim NV Mechelen, Belgium)...
June 29, 2016: Journal of Esthetic and Restorative Dentistry
Kyung S Koh, Woo Yeon Han, Woo Shik Jeong, Tae Suk Oh, Sun Man Kwon, Jong Woo Choi
Severe forms of bilateral cleft lip and palate remain a challenging issue. Although nasoalveolar molding dramatically improves overall treatment success, the position of the premaxilla often remains dislocated. The authors attempted to relocate the malpositioned premaxilla into the correct position to obtain the correct three-dimensional (3D) maxillary arch structure and growth. Eight patients with severe bilateral cleft lip and palate were treated with premaxillary osteotomy for premaxilla repositioning. The position of the premaxilla was measured directly using cephalometry...
September 2016: Journal of Craniofacial Surgery
You-Sun Lee, Yang-Jin Yi, Young-Kyun Kim, Nam-Ki Lee, Brent E Larson
The purpose of this case report is to describe an interdisciplinary approach for a 51-year-old male who underwent multiple facial fractures including bilateral condyle fractures. The patient underwent emergency surgery, which included open reduction of the maxilla and mandibular symphysis and closed reduction of the bilateral condyle fractures. Although the patient recovered a comfortable range of mouth opening and alleviation of the temporomandibular joint (TMJ) symptoms after surgery, he suffered from a large anterior-posterior discrepancy due to less stability on the condyle-fossa relationships and from open bite with contacts only on both second molars and right second premolars...
June 6, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Cristiane Machado Mengatto, Fábio Herrmann Coelho-de-Souza, Oswaldo Baptista de Souza Junior
Bruxism is a parafunctional activity related to clenching or grinding the teeth and tooth wear can be a consequence of sleep bruxism (SB). Management of severe tooth wear due to SB is a challenging situation because of the common reduced amount of remaining dental structure and loss of vertical dimension of occlusion. Rationale for the planning of oral rehabilitation of patients with SB presenting severe tooth wear should rely on evidence-based approaches; however, few studies have discussed properties of dental materials for SB rehabilitation and how to cosmetically manage severe tooth wear...
2016: Clinical, Cosmetic and Investigational Dentistry
Paola C Saponaro, Burak Yilmaz, Reza H Heshmati, Edwin A McGlumphy
STATEMENT OF PROBLEM: Computer-aided design and computer-aided manufacture (CAD-CAM)-fabricated complete dentures (CD) seek to address the disadvantages associated with conventional CD fabrication. However, few if any randomized clinical trials, cross-sectional, and/or retrospective analyses are available for the clinical performance of CAD-CAM-fabricated CDs. PURPOSE: The purpose of this retrospective study was to evaluate clinician experience with digital CD fabrication attempted in a 2-visit protocol...
September 2016: Journal of Prosthetic Dentistry
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