283 results match your criteria incisal bite


Reconstruction of Bilateral Mandibular Condyles Using a Single Vascularized Fibula.

Plast Reconstr Surg Glob Open 2021 Jan 25;9(1):e3154. Epub 2021 Jan 25.

Division of Plastic and Reconstructive Surgery, LSUHSC School of Medicine, New Orleans, La.

Patients with end-stage temporomandibular joint (TMJ) pathology present with loss of vertical ramus height with resulting retrognathia, anterior open bite, and restricted jaw function requiring joint reconstruction. Costochondral grafts, long considered the gold standard for TMJ reconstruction, carry risks of bony ankylosis and resorption. Custom-made alloplastic TMJ prostheses show excellent objective and subjective outcomes but are also associated with complications such as infection or metal sensitivity, and necessitate hardware explantation in some cases. Read More

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January 2021

A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite.

Prog Orthod 2020 Oct 20;21(1):39. Epub 2020 Oct 20.

Department of Orthodontics, Unniversity of North Paraná: (UNOPAR), Londrina, PR, Brazil.

Aim: To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients.

Materials And Methods: Fourteen subjects with an initial mean age of 9.17 ± 1. Read More

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October 2020

The ontogeny of maximum bite force in humans.

J Anat 2020 09 14;237(3):529-542. Epub 2020 May 14.

Department of Basic Medical Sciences, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, USA.

Ontogenetic changes in the human masticatory complex suggest that bite force, a key measure of chewing performance, increases throughout growth and development. Current published bite force values for humans exist for molar and incisal biting, but few studies measure bite forces across all tooth types, or measure bite force potentials in subjects of different ages. In the absence of live data, models of bite force such as the Constrained Lever Model (CLM), are employed to predict bite force at different bite points for adults, but it is unclear whether such a model can accurately predict bite force potentials for juveniles or subadults. Read More

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September 2020

Effect of biting speed and jaw separation on force used to incise food.

J Oral Rehabil 2020 Jun 20;47(6):731-735. Epub 2020 Mar 20.

Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand.

Biting food too quickly might affect the control of jaw-closing muscles and the estimation of bite force. The objectives of this study were to compare the incisal bite forces used to cut food and the activity of masseter (MA) and anterior temporalis (AT) muscles between slow, habitual and fast biting speeds and also between small and large jaw openings. Twenty subjects were asked to use their incisors to cut through a 5 mm thick of chewing gum. Read More

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Reliable measurement of incisal bite force for understanding the control of masticatory muscles.

Arch Oral Biol 2020 Apr 20;112:104683. Epub 2020 Feb 20.

Cellular and Structural Biology Graduate Program, Institute of Biology, University of Campinas, Campinas, SP, Brazil; EMG, Motor Control, and Experimental Electrothermotherapy Laboratory, Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, SP, Brazil.

Objective: In the present study, we aimed at evaluating the steadiness of incisal bite force during isometric contractions of masticatory muscles.

Design: Two separate experiments were carried out in 11 healthy young women. A first experiment was performed to test the reliability of our protocol for measurement of incisal bite force steadiness. Read More

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Evaluation of Success of Transport Disc Distraction Osteogenesis and Costochondral Graft for Ramus Condyle Unit Reconstruction in Pediatric Temporomandibular Joint Ankylosis.

J Oral Maxillofac Surg 2020 06 31;78(6):1018.e1-1018.e16. Epub 2020 Jan 31.

Professor and Head, Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India.

Purpose: The costochondral graft (CCG) is considered the reference standard for pediatric temporomandibular joint reconstruction. It has the disadvantages of unpredictable growth, donor site morbidity, and the need for intermaxillary fixation. It has been reported that transport disk distraction osteogenesis (TDDO) can result in the formation of a neocondyle and disc. Read More

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Influence of occlusal vertical dimension on lip positions at smile in completely dentulous adults.

J Indian Prosthodont Soc 2020 Jan-Mar;20(1):69-75. Epub 2020 Jan 27.

Department of Prosthodontics, College of Dental Science and Research Center, Ahmedabad, Gujarat, India.

Aim: The study was conducted to evaluate the effect of increased vertical dimension on the lip positions at smile in dentulous subjects.

Settings And Design: - comparative study.

Materials And Methods: Thirty individuals aged between 22 and 30 years were selected for the study. Read More

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January 2020

A proof-of-principle bite force study using two experimental test denture adhesives and a currently marketed denture adhesive.

Clin Exp Dent Res 2020 04 6;6(2):266-273. Epub 2020 Feb 6.

TKL Research, Bloomfield, NJ, USA.

Objectives: This proof-of-principle, single-center, randomized, examiner-blind, crossover study compared two experimental polyvinyl acetate (PVA)-based denture adhesives (Test Adhesives 1 and 2) with a marketed reference polymethyl vinyl ether/maleic anhydride (PMV/MA)-based adhesive and no adhesive using incisal bite force area over baseline over 12 hr (AOB ) in participants with an at least moderately well-fitting complete maxillary denture. Previous in vitro studies suggested the experimental denture adhesives provided superior performance.

Materials And Methods: Participants were randomized to a treatment sequence such that each received each treatment once. Read More

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The normal range of maximal incisal opening in pediatric population and its association with physical variables.

Ann Afr Med 2019 Jul-Sep;18(3):153-157

Department of Paedodontics and Preventive Dentistry, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India.

Background: Restricted mouth opening is a common complaint in patients suffering from temporomandibular joint disorders, ankylosis, impaired masticatory muscle function, rheumatic disease, infection, or malignancy. As with any disease, the aim of treatment of disorders affecting mouth opening is to restore the mouth opening to its normal value. It is thus of paramount importance to determine the normal value. Read More

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February 2020

Does overbite reduction affect smile esthetics?

Angle Orthod 2019 11 15;89(6):847-854. Epub 2019 Jul 15.

Objectives: To compare the effects of two common methods of overbite reduction on smile esthetics.

Materials And Methods: A prospective clinical trial was conducted with 32 patients in whom overbite reduction was achieved using a maxillary incisor intrusion arch (18 patients) or flat anterior bite plate (14 patients). Clinical and cephalometric records were compared pretreatment (T1), after overbite reduction (T2), and posttreatment (T3). Read More

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November 2019

A randomised bite force study assessing two currently marketed denture adhesive products compared with no-adhesive control.

Clin Exp Dent Res 2019 06 14;5(3):276-283. Epub 2019 May 14.

Oral Health Research Institute Indiana University School of Dentistry Indianapolis Indiana.

Unlike other oral care products, there are limited technologies in the denture adhesive category with the majority based on polymethyl vinyl ether/maleic anhydride (PVM/MA) polymer. Carbomer-based denture adhesives are less well studied, and there are few clinical studies directly comparing performance of denture adhesives based on different technologies. This single-centre, randomised, three-treatment, three-period, examiner-blind, crossover study compared a carbomer-based denture adhesive (Test adhesive) with a PVM/MA-based adhesive (Reference adhesive) and no adhesive using incisal bite force measurements (area over baseline over 12 hr; AOB) in participants with a well-made and at least moderately well-fitting complete maxillary denture. Read More

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Reciprocal cortical activation patterns during incisal and molar biting correlated with bite force levels: an fMRI study.

Sci Rep 2019 06 10;9(1):8419. Epub 2019 Jun 10.

Department of Maxillofacial Orthognathics, Division of Maxillofacial and Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.

In humans, the incisors and molars have distinct functions during mastication, analogous to the two main types of handgrip, the precision and power grips. In the present study, we investigated cortical activation and masticatory muscle activity during incisal and molar biting via simultaneous functional magnetic resonance imaging and electromyogram (EMG) recordings. We conducted recordings in 15 healthy adult participants while they performed incisal and molar biting tasks at three step-wise force levels using two custom-made splints. Read More

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Alterations in the gustatory papillae after anterior bite plate insertion in growing rats.

J Orthod Sci 2019 20;8. Epub 2019 Feb 20.

Department of Orthodontic Science, Division of Oral Health Science, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.

Objectives: To determine whether the modification of dental occlusion, without molar extraction, affected the gustatory papillae located in the tongue of growing rats.

Materials And Methods: Five-week-old male Wistar rats were randomly divided into an anterior bite plate (ABP) group and a control group. Under general anesthesia, ABPs were placed on the occlusal surfaces of the maxillary incisors, while metal caps covered the mandibular incisal edges of the rats in the ABP group. Read More

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February 2019

Randomized Clinical Study Comparing Three Experimental Denture Adhesives and Fixodent® versus No Adhesive.

J Clin Dent 2018 Dec;29(4):69-74

TKL Research Inc., Ramsey, NJ, USA.

Objectives: Denture adhesives can improve function, retention, stability, and bite force in well-fitting dentures. This single-center, randomized, five-arm, examiner-blind, crossover clinical study aimed to compare three experimental adhesives ("Adhesive 1," "Adhesive 2," "Adhesive 3") with slightly different formulations and a commercially marketed "Positive control" with a "No Adhesive" arm using incisal bite force measurements over 12 hours in subjects with a moderately well- to well-fitting maxillary denture.

Methods: Institutional review and informed consent were obtained and qualified subjects were randomly assigned to a treatment sequence. Read More

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December 2018

Stress distribution in mandibular donor site after harvesting bone grafts of various sizes from the ascending ramus of a dentate mandible by finite element analysis.

Clin Oral Investig 2019 May 4;23(5):2265-2271. Epub 2018 Oct 4.

Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.

Purpose: Harvesting bone from the ascending ramus of the mandible is a common procedure. However, mandibular fracture may occur after grafting bone blocks. This study aimed to investigate the resulting force distribution of stress and strain in the mandibular donor site after harvesting bone grafts of different sizes and various loadings. Read More

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Modelling of the forces acting on the human stomatognathic system during dynamic symmetric incisal biting of foodstuffs.

J Biomech 2018 10 10;79:58-66. Epub 2018 Aug 10.

Department of Biomedical Engineering, Mechatronics and Theory of Mechanisms, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Łukasiewicza 5, 50-371 Wrocław, Poland. Electronic address:

A major stage in the preparation of a computational model of the human stomatognathic system is the determination of the values of the forces for the adopted loading configuration. In physiological conditions, food is a factor having a significant effect on the values of the loads acting on the stomatognathic system. Considering that the act of mastication is a complex process, this research undertook to determine the forces (bite forces, muscular forces and temporomandibular joint reaction forces) acting on the stomatognathic system during the dynamic symmetric incisal biting of selected foodstuffs. Read More

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October 2018

Berry's index: Adjuvant to bite marks.

J Forensic Dent Sci 2018 Jan-Apr;10(1):45-49

Department of Public Health Dentistry, Institute of Dental Studies and Technologies, Modinagar, Uttar Pradesh, India.

Introduction: Bite-mark analysis has proven its advantage as an important forensic tool in the past but also has a few limitations to it. To enhance its utility in forensic odontology in this study we have coupled it with Berry's Index (BI) which is an index used to select anterior teeth in prosthetic practice.

Aims And Objectives: This study was attempted to analyze the applicability of BI in identifying an individual. Read More

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Nonsurgical orthodontic treatment of a hypodivergent adult patient with bilateral posterior scissors bite and excessive overjet.

Angle Orthod 2019 03 6;89(2):333-349. Epub 2018 Aug 6.

This report illustrates successful nonsurgical orthodontic treatment of a hypodivergent adult patient with bilateral posterior scissors bite (Brodie bite) and excessive overjet. A 26-year-old woman primarily reported maxillary incisor protrusion. She was diagnosed with Class ll division 1 malocclusion with skeletal Class I, short face, low mandibular plane angle and bilateral posterior scissors bite. Read More

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Restorative Management of Severe Localized Tooth Wear Using a Supraoccluding Appliance: A 5-Year Follow-Up.

Case Rep Dent 2018 27;2018:9864782. Epub 2018 May 27.

Prosthodontics, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong.

This case report illustrates a novel conservative restorative management of a patient with bulimia nervosa who presented with severe localized upper palatal tooth wear and an anterior reverse overjet. This was achieved by using a localized bite raising or supraoccluding appliance, cemented on the lingual side of the lower anterior teeth to create interocclusal space, obviating the need for tooth reduction of the eroded upper palatal and incisal tooth surfaces. Surgical crown lengthening was performed to create a better aesthetic gingival architecture. Read More

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A Randomized Proof-of-Principle Bite Force Study of Two Experimental Denture Adhesives and a Commercially Available Adhesive.

Int J Prosthodont 2018 Jul/Aug;31(4):351-358

Purpose: To assess the efficacy of two experimental denture adhesive gels (adhesives 1 and 2) compared to a commercially available denture adhesive cream (positive control) and no adhesive (negative control).

Materials And Methods: This was a single-center, randomized, four-treatment, examiner-blind, crossover study in participants with well-made and at least moderately well-fitting maxillary complete dentures. Incisal bite force until denture dislodgment was measured before application (baseline) and over the following 12 hours for each of the treatments. Read More

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November 2018

[JUSTIFICATION OF CHOICE OF THE POSITION OF THE REINFORCEMENT ELEMENT OF A GLASS-FIBER ADHESIVE TIRE BASED ON THE STUDY OF DIAGNOSTIC MODELS IN THE ARTICULATOR AND THE FOLLOWING PARALLELMETRIC RESEARCH].

Georgian Med News 2018 May(278):45-50

1Higher State Educational Institution "Bukovinian State Medical University", Chernivtsi; 2Ukrainian Academy of Sciences, Kiev, Ukraine.

The aim of the study was to develop the most optimal variant for placing the reinforcing element of a fiberglass splint with the mobility of the anterior teeth on the basis of a parallelometric study of the diagnostic models of the jaws depending on the type of occlusion and the degree of bone resorption. For the most optimal variant of the placement of the reinforcing element of the adhesive splint with orthognathic bite and deep incisal overlap, the front slope of the model was selected with the transfer of the reinforcing element of the adhesive splint onto the lingual surface. With direct, prognathic and progenic bite and bone resorption up to ¼ height (according to retrography data), the back slope of the model was selected with the placement of the reinforcing element of the adhesive splint on the vestibular surface of the lower jaw. Read More

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The evaluation of stress patterns in porcelain laminate veneers with different restoration designs and loading angles induced by functional loads: A three-dimensional finite element analysis study.

Authors:
O Ustun A N Ozturk

Niger J Clin Pract 2018 Mar;21(3):337-342

Private Practice, Funda Konutlari, Bebe Hakan, Selçuklu, Konya, Turkey.

Background: Fractures in porcelain laminate veneers (PLVs) are a significant clinical problem. Preparation designs can affect stress distribution, which leads to fractures in PLVs. Therefore, identification of the most favorable preparation design in terms of stress distribution is required. Read More

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Prevalence of traumatic dental injuries and associated factors among 8 to 12-years-old schoolchildren in Diyarbakir, Turkey.

Niger J Clin Pract 2017 Oct;20(10):1259-1266

Oral and Dental Health Center, Department of Oral and Maxillofacial Surgery, Diyarbakır, Turkey.

Background And Objectives: This study aimed to assess the prevalence of traumatic injuries of the permanent incisors in public primary schoolchildren from 8 to 12 years old in South-Eastern Anatolia, Turkey. Additionally, the relationship between traumatic dental injuries, parents' education level, family income, size of incisal overjet and the presence of anterior open bite were examined.

Materials And Methods: Data were collected through oral examinations and structured interviews, and included socio-economic indicators. Read More

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October 2017

Mandibular kinematics and maximum voluntary bite force following segmental resection of the mandible without or with reconstruction.

Clin Oral Investig 2018 May 7;22(4):1707-1716. Epub 2017 Nov 7.

Department of Oral and Maxillofacial Plastic Surgery, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.

Objectives: The purpose was to analyze mandibular kinematics and maximum voluntary bite force in patients following segmental resection of the mandible without and with reconstruction (autologous bone, alloplastic total temporomandibular joint replacement (TMJ TJR)).

Materials And Methods: Subjects operated from April 2002 to August 2014 were enrolled in the study. Condylar (CRoM) and incisal (InRoM) range of motion and deflection during opening, condylar retrusion, incisal lateral excursion, mandibular rotation angle during opening, and maximum voluntary bite force were determined on the non-affected site and compared between groups. Read More

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Effect of incisal loading during orthodontic treatment in adults: A randomized control trial.

Angle Orthod 2018 Jan 3;88(1):35-44. Epub 2017 Nov 3.

Objective: To measure the changes in tooth mobility, alveolar bone, and receptor activator of nuclear factor kappa-B ligand (RANKL)/osteoprotegerin (OPG) in the gingival crevicular fluid (GCF) during orthodontic treatment to regain incisal function in the presence and absence of biting exercises.

Materials And Methods: Thirty-six females (42.3 ± 6. Read More

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January 2018

Occlusal Features and Caries Experience of Hong Kong Chinese Preschool Children: A Cross-Sectional Study.

Int J Environ Res Public Health 2017 06 9;14(6). Epub 2017 Jun 9.

Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.

To study occlusal features and their relation to caries experience in Hong Kong Chinese preschool children. Seven kindergarten classes in Hong Kong were selected using a stratified random sampling method, and the 4- and 5-year-old Chinese kindergarten children were invited to join the survey. Two calibrated dentists performed the clinical examinations in the kindergartens. Read More

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Comparative analysis of the stress distribution in five anatomical types of maxillary central incisor.

Technol Health Care 2017 Jul;25(S1):53-62

Longgang District Central Hospital, Affiliated to Zunyi Medical College, Shenzhen, Guangdong, China.

Background: The maxillary central incisor is one of the most important anatomical indicators in esthetics, and stress distribution may vary among its five anatomical views (labial, palatal, mesial, distal, and incisal).

Objective: To compare stress distribution among the five anatomical views of the maxillary central incisor under loading force at five angles and to observe and analyze the stress distribution in the dentin and periodontal ligament.

Methods: We established three-dimensional finite element models of the five different views, which simulated the bite force with a static load force at 0∘, 30∘, 45∘, 60∘, and 90∘. Read More

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Conservative, Functional, and Esthetic Rehabilitation of Severe Palatal Erosion (Class IV) Using Modified Dahl Approach.

Compend Contin Educ Dent 2017 May;38(5):289-294; quiz 296

Periodontics, University of Mumbai, Mumbai, India; Consulting Periodontist, Mumbai, India; Director, Perioindia, Mumbai, India.

This article demonstrates the clinical application of biomechanical and occlusal principles to conservatively provide optimal clinical outcomes in restoring an eroded anterior dentition. The authors manage a challenging case involving limited palatal clearance (ie, deep bite) coupled with palatal erosion and wear by combining the centric relation (CR) and Dahl principles to create anterior interocclusal space to reduce the need for more invasive palatal reduction. The combined use of adhesive restorations-resin composites on the palatal surface and indirect porcelain veneers on the facial/incisal surfaces-through enamel and dentin bonding helped optimize esthetic and functional/biomechanical aspects. Read More

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Occlusal features and need for orthodontic treatment in persons with osteogenesis imperfecta.

Clin Exp Dent Res 2017 Feb 9;3(1):19-24. Epub 2017 Feb 9.

Institute of Dentistry University of Tartu Tartu Estonia.

The aim of the study was to (a) analyse dental occlusion and determine the need for orthodontic treatment of persons with osteogenesis imperfecta (OI) in comparison with the healthy population and (b) investigate the associations between OI and malocclusion. A case-control study included 26 OI persons and 400 healthy participants (control group). Occlusal features and the need for orthodontic treatment were defined according to Dental Health Component-Index of Orthodontic Treatment Need and Dental Aesthetic Index. Read More

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February 2017