5,014 results match your criteria bite force

Unprecedented Biting Performance in Herbivorous Fish: How the Complex Biting System of Pomacentridae Circumvents Performance Trade-Offs.

Am Nat 2021 05 19;197(5):E156-E172. Epub 2021 Mar 19.

AbstractIt is well accepted that the complexity of functional systems may mitigate performance trade-offs. However, data supporting this theory are hard to find because they need to be based on a functional system with different complexity levels in closely related species. The Pomacentridae (damselfishes) provide an excellent opportunity to test this hypothesis because most of the species have two mouth-closing systems: the first using the , as in all teleost fishes, and the second relying on the ceratomandibular (cmd) ligament, a synapomorphic trait of the family. Read More

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Immune activation affects whole-organism performance in male but not female green anole lizards (Anolis carolinensis).

J Comp Physiol B 2021 Apr 26. Epub 2021 Apr 26.

Department of Biological Sciences, University of New Orleans, New Orleans, LA, 70148, USA.

Immune responses are intuitively beneficial, but they can incur a variety of costs, many of which are poorly understood. The nature and extent of trade-offs between immune activity and other components of the integrated phenotype can vary, and depend on the type of immune challenge, as well as the energetic costs of simultaneously expressing other traits. There may also be sex differences in both immune activity and immunity-induced trade-offs, particularly in the case of trade-offs involving functional traits such as whole-organism performance capacities that might be of different fitness value to males and females. Read More

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Bite Force Transducers and Measurement Devices.

Front Bioeng Biotechnol 2021 9;9:665081. Epub 2021 Apr 9.

Department of Orthodontics, Beijing Stomatological Hospital, Capital Medical University, Beijing, China.

In dental research, bite force has become an important curative effect evaluation index for tooth restoration, periodontal treatment, and orthodontic treatment. Bite force is an important parameter to evaluate the efficacy of the masticatory system. Physicians obtain the therapeutic basis for occlusal adjustment by measuring the bite force and the dynamic changes in occlusal contact at different stages of treatment and objectively evaluate the therapeutic effect. Read More

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Cephalometric evaluation of intrusion of maxillary posterior teeth by miniscrews in the treatment of open bite.

Am J Orthod Dentofacial Orthop 2021 Apr 16. Epub 2021 Apr 16.

Department of Orthodontics, Faculty of Dentistry, Alanya Alaaddin Keykubat University, Alanya, Turkey. Electronic address:

Introduction: The objective of this research was to investigate the effectiveness of orthodontic miniscrews for skeletal anchorage during anterior open bite treatment using cephalometric radiographs.

Methods: This study sample included 20 patients (mean age, 14.71; standard deviation, 1. Read More

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Six-year clinical outcomes of implant-supported acrylic vs. ceramic superstructures according to the All-on-4 treatment concept for the rehabilitation of the edentulous maxilla.

Odontology 2021 Apr 10. Epub 2021 Apr 10.

Department of Oral and Maxillofacial Surgery, Universitätsklinikum Schleswig Holstein, Christian Albrechts University, Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Germany.

The aim of the current study was to document the long-term clinical results of the use of two prosthetic techniques for the rehabilitation of completely edentulous maxillae according to the "All-on-Four" concept: Fixed, screw-retained prosthesis mounted on a chrome-molybdenum framework with (1) metal-ceramic veneers and (2) Acrylic prosthesis with acrylic resin prosthetic teeth. A total of 34 patients were assigned to subgroups according to their own preference of the superstructure type (ceramics [n: 17] or acrylic resin [n: 17]). Prosthetic complications, marginal bone loss, plaque accumulation, bleeding on probing, bite force and oral-health-related quality of life were assessed over a period of 6 years. Read More

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Effectiveness of silicone-based resilient denture liners on masticatory function: A randomised controlled trial.

J Dent 2021 Apr 5;109:103657. Epub 2021 Apr 5.

Department of Removable Prosthodontics, Nihon University School of Dentistry at Matsudo, Matsudo, Japan.

Objectives: This randomised controlled trial aimed to compare the masticatory function between the silicone-based resilient denture liner and conventional denture among edentulous patients.

Methods: The trial included edentulous patients who were willing to have a new set of complete dentures. Participants were randomly assigned to receive mandibular complete dentures with either a 1) conventional denture base (CD group) or (2) silicone-based resilient denture liner (RD group). Read More

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A lower maximum bite force is a risk factor for developing cardiovascular disease: the Suita study.

Sci Rep 2021 Apr 7;11(1):7671. Epub 2021 Apr 7.

Open Innovation Center, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka, 564-8565, Japan.

Decreases in masticatory function are believed to be related to the development of cardiovascular disease (CVD) through inappropriate nutritional intake. This study focused on maximum bite force (MBF), which is an objective, quantitative index of masticatory function, and its association with the development of CVD (stroke and coronary heart disease) was investigated. The subjects were 1547 participants of the Suita study with no history of CVD who underwent medical and dental health examinations between June 2008 and June 2013. Read More

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Alleviation of masticatory disturbance with an occlusal splint in a Duchenne muscular dystrophy patient.

Spec Care Dentist 2021 Apr 7. Epub 2021 Apr 7.

Department of Surgery, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Japan.

Aim: To present an occlusal splint effective for alleviating masticatory disturbance in Duchenne muscular dystrophy (DMD).

Case Report: A 13-year-old male DMD patient with masticatory disturbance presented with an open bite, with occlusal contact only between the first and second molars bilaterally and reduced masticatory performance. We applied an occlusal splint that achieved occlusal contact for all teeth and monitored its effects on masticatory function over 6 years. Read More

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Influence of material type, thickness and storage on fracture resistance of CAD/CAM occlusal veneers.

J Mech Behav Biomed Mater 2021 Mar 29;119:104485. Epub 2021 Mar 29.

Operative Dentistry Department, Faculty of Dentistry, Mansoura University, Egypt.

Objectives: The present study aimed to evaluate the effect of restoration thickness, CAD/CAM material, and 6 months of artificial saliva storage on the fracture resistance of occlusal veneers.

Materials And Methods: A total of 84 intact maxillary molars were sectioned 4.0 mm occlusal to the cementoenamel junction to expose the dentine. Read More

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Reliability of a New Bite Force Measure and Biomechanics of Modified Long Attack in Police Dogs.

Animals (Basel) 2021 Mar 18;11(3). Epub 2021 Mar 18.

Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57 (Viikintie 49), 00014 Helsinki, Finland.

Information on the biomechanics of police dogs' tasks is important in understanding their work-related injuries and dysfunctions. This study aimed to develop and test a measurement tool for dogs' functional bite force and to report modified long attack-related kinetic and kinematic values. Twenty Finnish male police dogs, 7 German Shepherd Dogs (GSDs) and 13 Belgian Shepherd Dogs, Malinois (BSDMs), were included. Read More

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Observational Study Regarding Possible Side Effects of Miniscrew-Assisted Rapid Palatal Expander (MARPE) with or without the Use of Corticopuncture Therapy.

Biology (Basel) 2021 Mar 3;10(3). Epub 2021 Mar 3.

Faculty of Dental Medicine, University of Medicine and Pharmacy, Science and Technology George Emil Palade Târgu-Mureș, 38 Gheorghe Marinescu Street, 540139 Târgu Mureș, Romania.

The use of maxillary expanders has the effect of distancing the maxillary bones at the level of the median palatal suture. During maxillary expansion, the main resistance forces occur at the zygomatico-maxillary sutures, and not in the median palatal suture, which is the basic principle on which this method is based. In this observational study, we evaluated possible complications at the skeletal and dentoalveolar level after palatal split using miniscrew-assisted rapid palatal expansion (MARPE) associated or not with corticopuncture (CP) therapy. Read More

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Maximum bite force in children with juvenile idiopathic arthritis with and without clinical established temporomandibular joint involvement and in healthy children: a cross-sectional study.

J Oral Rehabil 2021 Mar 29. Epub 2021 Mar 29.

Department of Oral and Maxillofacial Surgery and Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.

Background: In children with juvenile idiopathic arthritis (JIA), the temporomandibular joint (TMJ) can be involved, resulting in dysfunction of the masticatory system. Bite force is one of the variables that reflects the function of the masticatory system. The aim of this study was to compare maximum bite force in children with JIA, with and without TMJ involvement and with healthy children. Read More

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Divergent morphological responses to millennia of climate change in two species of bats from Hall's Cave, Texas, USA.

PeerJ 2021 15;9:e10856. Epub 2021 Mar 15.

Department of Integrative Biology, University of Texas at Austin, Austin, TX, United States of America.

How species will respond to ongoing and future climate change is one of the most important questions facing biodiversity scientists today. The fossil record provides unparalleled insight into past ecological and evolutionary responses to climate change, but the resource remains virtually untapped for many organisms. We use geometric morphometrics and a 25,000 year fossil record to quantify changes in body size and mandible shape through time and across climate regimes for two bat species present in Quaternary paleontological deposits of central Texas: , a bat distributed throughout the Southwestern US and Mexico that is still found in central Texas today, and , a bat widely distributed throughout North America that has been extirpated in central Texas. Read More

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Biomechanical Impact of a Zygoma Complex Fracture Using Human Cadaver.

J Craniofac Surg 2021 Mar 22. Epub 2021 Mar 22.

Graduate Program in Biomedical Engineering, The University of Western Ontario Schulich School of Medicine and Dentistry, The University of Western Ontario Otolaryngology-Head and Neck Surgery, The University of Western Ontario Mechanical and Materials Engineering, The University of Western Ontario, London, Ontario, Canada.

Abstract: Zygomaticomaxillary complex fractures are common in midface trauma, with treatment often involving repair using titanium mini plates. However, the need for plate fixation along the zygomaticomaxillary suture on the infraorbital rim remains controversial. This study utilized a previously reported bite force simulator to investigate craniofacial strain patterns following zygomaticomaxillary complex fracture repairs with and without plating of the infraorbital rim. Read More

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Clinical analysis of CAD-CAM milled and printed complete dentures using computerized occlusal force analyser.

Technol Health Care 2021 Mar 9. Epub 2021 Mar 9.

Background: Digital complete dentures (CDs) by computer-aided designing and computer-aided manufacturing (CAD-CAM) techniques (milling and three-dimensional (3-D) printing) have been evaluated clinically and provided satisfactory results. But clinical studies assessing occlusal forces by digital dentures are lacking.

Objectives: To compare the occlusal force parameters in complete dentures (CDs) fabricated by milling, 3-D printing and conventional techniques having 3 commonly used occlusal schemes, using computerized occlusal force analysis system (Tech-Scan III- T-Scan III). Read More

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Nerve Growth Factor-Induced Sensitization of the Sternocleidomastoid Muscle and Its Effects on Trigeminal Muscle Sensitivity and Pain Profiles: A Randomized Double-Blind Controlled Study.

J Oral Facial Pain Headache 2021 Winter;35(1):7-16

Aims: To investigate whether localized sensitization of the sternocleidomastoid (SCM) muscle using nerve growth factor (NGF) would affect masseter and anterior temporalis muscle sensitivity and pain profiles.

Methods: A total of 28 healthy participants attended two sessions (T and T). At T, the maximum voluntary occlusal bite force (MVOBF), as well as pressure pain thresholds (PPT), mechanical sensitivity, and referred pain/sensations for the SCM, masseter, and temporalis muscles, were assessed. Read More

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A systematic review and meta-analysis to evaluate the efficacy of denture adhesives.

J Dent 2021 May 13;108:103638. Epub 2021 Mar 13.

Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Sai Ying Pun, Hong Kong, China. Electronic address:

Objectives: This systematic review aims to investigate the efficacy of denture adhesives (DAs) for complete dentures (CDs), and to provide clinical recommendations for prosthodontists and general practitioners.

Data/sources: Electronic databases (Medline, Embase, CENTRAL) and gray literatures were searched (up to March 2020) for relevant randomized and non-randomized controlled clinical trials (RCTs and CCTs) evaluating the efficacy of DAs when applied to CDs. Primary outcomes were objectively assessed variables directly related to mastication (denture retention, maximum bite force and masticatory efficiency). Read More

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Botulinum toxin treatment of temporomandibular joint pain in patients with bruxism: A prospective and randomized clinical study.

D I Kaya H Ataoglu

Niger J Clin Pract 2021 Mar;24(3):412-417

Department of Oral and Maxillofacial Surgery, Medipol University, Istanbul, Turkey.

Background: Bruxism is a parafunctional habit, usually performed in sleep, by rhythmic and involuntary teeth being squeezed or squeaked. The most common methods of treatment are the use of occlusal splints.

Aims: The aim of this study was to compare the efficacy of occlusal splinting with botulinum toxin administration in the treatment of TMJ pain. Read More

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Computerized occlusal forces analysis in complete dentures fabricated by additive and subtractive techniques.

Technol Health Care 2021 Mar 5. Epub 2021 Mar 5.

Background: Fabrication of complete dentures by computer-aided designing and computer-aided manufacturing (CAD-CAM) techniques are now common. Subtractive and Additive are the two principal CAD-CAM techniques used for this purpose. However, studies that evaluated the occlusal forces by CDs manufactured by these techniques are lacking. Read More

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Use of a modified vertical holding appliance for open bite interceptive treatment in growing patients.

Eur J Paediatr Dent 2021 ;22(1):35-40

Professor and Chief, Department of Life, Health and Environmental Sciences, School of Dentistry, University of L'Aquila, L'Aquila, Italy.

Background: The aim of this paper is to illustrate the use of a modified vertical holding appliance (G-VHA) to obtain the vertical control of maxillary molars and tongue stimulation in order to achieve a transverse activation in growing patients with dental open bite without the patient's compliance.

Case Reports: The G-VHA is a modified trans-palatal bar with a resin pad covering the Omega central loop and two adjunctive lateral loops to ensure the bar flexibility. The G-VHA is designed to direct the force of the tongue against the upper molars to generate intrusion and at the same time to stimulate and re-educate the tongue. Read More

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Preoperative and postoperative assessment of temporal and masseter muscle size with magnetic resonance imaging in patients undergoing unilateral temporomandibular joint surgery.

J Craniomaxillofac Surg 2021 Feb 23. Epub 2021 Feb 23.

Department of Radiology, Faculty of Medicine, Karadeniz Technical University, Akcaabat, Trabzon, Turkey. Electronic address:

The aim of this study was to assess any change between the preoperative and postoperative sizes of temporal and masseter muscles with magnetic resonance imaging (MRI) in patients undergoing unilateral temporomandibular joint surgery. This study was designed and implemented retrospectively. For clinical evaluation, a visual analog scale (VAS) and maximum mouth opening (MMO) were used. Read More

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February 2021

A Nasal Bone Fracture Caused by a Dog Bite in an Adult.

J Craniofac Surg 2021 Mar 4. Epub 2021 Mar 4.

Department of Plastic Surgery, Inha University School of Medicine Department of Plastic Surgery, Inha University Hospital, Incheon, South Korea.

Abstract: The authors report a case of nasal bone fracture caused by a dog bite in a 25-year-old woman.A 25-year-old woman presented with lacerations of the face caused by a dog bite. When visiting her friend's house, a malamute attacked her. Read More

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Development of a Wearable Mouth Guard Device for Monitoring Teeth Clenching during Exercise.

Sensors (Basel) 2021 Feb 22;21(4). Epub 2021 Feb 22.

Department of Sports Medicine/Dentistry, Division of Public Health, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.

Teeth clenching during exercise is important for sports performance and health. Recently, several mouth guard (MG)-type wearable devices for exercise were studied because they do not disrupt the exercise. In this study, we developed a wearable MG device with force sensors on both sides of the maxillary first molars to monitor teeth clenching. Read More

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February 2021

Positive Effects of Saliva on Oral Candidiasis: Basic Research on the Analysis of Salivary Properties.

J Clin Med 2021 Feb 17;10(4). Epub 2021 Feb 17.

Department of Oral Interdisciplinary Medicine, Prosthodontics & Oral Implantology, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka 238-8580, Japan.

The major causes of oral candidiasis include decreased salivary flow rate and the use of ill-fitting dentures. However, the relationships among prosthetic treatment, saliva, and have not been elucidated. This study aimed to examine the effects of prosthetic treatment and changes in saliva (mainly the salivary flow rate) on oral candidiasis symptoms. Read More

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February 2021

Evaluation of bite force recovery in patients with maxillofacial fracture.

J Craniomaxillofac Surg 2021 Feb 22. Epub 2021 Feb 22.

Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran; Resident of Otolaryngology, Otolaryngology Research Center, Department of Otolaryngology, Shiraz University of Medical Sciences, Shiraz, Iran. Electronic address:

The aim of this study was to measure the maximum voluntary bite force and recovery time in patients treated for different types of the maxillofacial fracture. Patients aged between 18 and 60 years, who received surgical treatment for a single isolated fracture of the maxillofacial structure, were included in this study. Healthy individuals without any maxillofacial abnormality were selected as the control group. Read More

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February 2021

Bite Force Capability.

Dennis Flanagan

J Am Dent Assoc 2021 03;152(3):187

Private Practice, Willimantic, CT.

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Authors' response.

J Am Dent Assoc 2021 03;152(3):187

Professor, Department of Periodontics, College of Dental Medicine, Columbia University, New York, NY; Private Practice, Surgical Implantology and Periodontics, Freehold, NJ.

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Quality and Findings of Bitewing Radiographs among Twenty-Year-Old Conscripts in Finland.

Int J Dent 2021 8;2021:8894917. Epub 2021 Feb 8.

Department of Cariology, Endodontology and Pediatric Dentistry, Research Unit of Oral Health Sciences, University of Oulu, Oulu, Finland.

Objectives: Bitewing radiographs are mainly used to confirm clinical findings in caries diagnostics. The objective here was to investigate the quality of bitewing radiographs after short brush-up training and additional findings besides caries in a low-caries population.

Methods: The material of this cross-sectional study comprised 377 pairs of bitewing radiographs of 19- to 20-year-olds taken by dentists. Read More

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February 2021

Finite element analysis of occlusal interferences in dental prosthetics caused by occlusal adjustment.

Int J Prosthodont 2021 Feb 23. Epub 2021 Feb 23.

Purpose: To investigate the influence of occlusal interference in dental prosthetics using finite element analysis (FEA).

Materials And Methods: The FEA model designed for this study centered on an all-ceramic, bi-layered, fixed partial denture (FPD) retained on the maxillary first premolar and molar, with the second premolar replaced by a pontic. The surrounding structures, such as the neighboring teeth, antagonists, and periodontium, were modeled. Read More

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February 2021

Comparison of Simultaneously Recorded Computerized Occlusal Analysis and Surface Electromyographic Activity of Masticatory Muscles Between Patients with Unilateral TMD.

Int J Prosthodont 2021 Feb 23. Epub 2021 Feb 23.

Purpose: To investigate the relationships among occlusion time, disclusion time, occlusal load distributions, and simultaneous electromyographic (EMG) recordings of the anterior temporalis (TA) and masseter (MM) muscles during centric and lateral movements in patients with unilateral temporomandibular disorder (TMD) pain and in asymptomatic control subjects.

Materials And Methods: Twelve healthy and 13 unilateral TMD subjects participated in the present study. The diagnosis of unilateral TMD was verified with vibrational analysis of the temporomandibular joints (TMJs) using the BioJVA (BioResearch Associates). Read More

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February 2021