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Dental occlusion

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https://www.readbyqxmd.com/read/28914250/a-comparative-evaluation-of-retention-of-pit-and-fissure-sealant-bonded-using-sixth-seventh-and-eighth-generation-adhesives-an-in-vivo-study
#1
Mitakshra Nirwan, Anant Gopal Nigam, Nikhil Marwah, Ullal Anand Nayak, Aayushi Bansal, Manvendra Singh Gahlot
INTRODUCTION: Dental caries is one of the most common preventable childhood infections. a number of measures are available to prevent occlusal caries; pit and fissure sealants are one of the various methods currently available to cost effectively reduce dental caries. AIM: To evaluate the retention of pit and fissure sealant bonded using sixth (Adper promt), seventh (Optibond) and eighth (Futurabond Dual Cure) generations of adhesives. SETTINGS AND DESIGN: A total of 37 healthy children who fulfilled the inclusion were randomly selected...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28914241/validation-of-different-diagnostic-aids-in-detection-of-occlusal-caries-in-primary-molars-an-in-vitro-study
#2
G Shwetha, Prakash Chandra, Latha Anandakrishna, G Dhananjaya, Ashmitha K Shetty, Punitha S Kamath
AIM AND OBJECTIVE: To estimate the accuracy and assess the sensitivity and specificity of direct visual examination (DVE), computerized radiograph (VISTA SCAN mini), and DIAGNOdent (DD) for caries diagnosis in primary molars as compared to histological examination of the teeth. MATERIALS AND METHODS: An in vitro comparative study was carried out on 40 freshly extracted primary molars with questionable pit and fissures that yielded 89 examination sites. These samples were mounted on plaster and were subjected to examination methods for caries detection on the occlusal surface by two trained and calibrated examiners...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28912859/multidisciplinary-therapy-for-the-treatment-of-malocclusion-in-a-patient-with-chronic-periodontitis-with-a-five-year-follow-up-a-case-report
#3
Dongmei Zhang, Li Lin, Xiaoling Tang, Chen Li, Jingbo Liu, Hongyang Wang, Yaping Pan
Multidisciplinary therapy is essential in dental practice to achieve optimized outcomes. The present case report describes the application of periodontal surgery with a five-year follow-up in a patient with malocclusion and chronic periodontitis. In the presence of periodontal inflammation, orthodontic therapy may result in further periodontal breakdown due to plaque accumulation. In order to prevent this progression, scaling and root planning with a periodontal endoscope was applied, and continuous clinical monitoring and risk assessment was performed every 3 months using a Florida Probe...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28904320/geometrical-effects-of-conventional-and-digital-prosthodontic-planning-wax-ups-on-lateral-occlusal-contact-number-contact-area-and-steepness
#4
Jaafar Abduo
This study evaluated and compared the effect of conventional and digital wax-ups on three lateral occlusion variables: contact number, contact area, and steepness. Dental casts of 10 patients with Angle Class I relationship were included in the study. All patients required fixed prosthodontic treatment that would affect lateral occlusion. The casts of all patients received conventional and digital wax-ups. For pretreatment, conventional wax-up, and digital wax-up casts, contact number, contact area, and occlusion steepness were measured at four lateral positions, that is, at excursions of 0...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28898732/poly-n-isopropylacrylamide-hydroxyapatite-nanocomposites-as-thermoresponsive-filling-materials-on-dentinal-surface-and-tubules
#5
Paolo Tempesti, Giovanni Simone Nicotera, Massimo Bonini, Emiliano Fratini, Piero Baglioni
HYPOTHESIS: Dental decay, asa consequence of exposure to acidic foods and drinks, represents one of the most important tooth pathologies. Recently, enamel and dentinal surface remineralization using hydroxyapatite nano- and microparticles has been proposed; however, commercial remineralizing toothpastes are quite expensive, mostly due to the high costs of hydroxyapatite. Hence, we propose a thermoresponsive hybrid nanocomposite material as filler for tooth defects. The use of thermoresponsive composite particles aims at filling exposed dentinal tubules in response to a change of temperature in the oral cavity...
September 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28894837/dental-occlusion-ties-a-rapid-safe-and-non-invasive-maxillo-mandibular-fixation-technology
#6
Alan W Johnson
OBJECTIVES: For decades, Erich arch bars have been a standard in establishing maxillo-mandibular fixation (MMF). While reliable, the approach risks sharps injury, consumes operating room time, and inflicts gingival trauma. Newer technologies including screw-based techniques and "hybrid" techniques have improved MMF by reducing sharps injuries and operating room time, but risk injury to tooth roots, nerves, and gingiva. This study aims to establish the application, strengths, and limitations of dental occlusion ties as a novel alternative in maxillo-mandibular fixation...
August 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28893541/nanomechanical-assessment-of-bone-surrounding-implants-loaded-for-3%C3%A2-years-in-a-canine-experimental-model
#7
Rodolfo B Anchieta, Márcia V M Guimarães, Marcelo Suzuki, Nick Tovar, Estevam A Bonfante, Pablo Atria, Paulo G Coelho
PURPOSE: This work evaluated the nanomechanical properties of bone surrounding submerged and immediately loaded implants after 3 years in vivo. It was hypothesized that the nanomechanical properties of bone would markedly increase in immediately and functionally loaded implants compared with submerged implants. MATERIALS AND METHODS: The second, third, and fourth right premolars and the first molar of 10 adult Doberman dogs were extracted. After 6 months, 4 implants were placed in 1 side of the mandible...
August 17, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28888395/dental-adaptations-of-bronze-age-harappans-occlusal-wear-crown-size-and-dental-pathology
#8
John R Lukacs
Systematic study of dental attributes yields insights regarding diet and subsistence that cannot be gained from the archaeological record alone. This analysis documents occlusal tooth wear, tooth crown dimensions and dental pathology of an expanded dental sample from Harappa (2550-2030cal BC; Pakistan). New floral and faunal evidence of subsistence indicates a mix of agriculture and pastoralism that can be integrated with evidence of dental attributes and disease to reveal the impact of Harappan diet on oral health...
September 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28887958/photoelastic-analysis-of-mandibular-full-arch-implant-supported-fixed-dentures-made-with-different-bar-materials-and-manufacturing-techniques
#9
Danilo Zaparolli, Raniel Fernandes Peixoto, Denise Pupim, Ana Paula Macedo, Marcelo Bighetti Toniollo, Maria da Glória Chiarello de Mattos
PURPOSE: To compare the stress distribution of mandibular full dentures supported with implants according to the bar materials and manufacturing techniques using a qualitative photoelastic analysis. MATERIAL AND METHODS: An acrylic master model simulating the mandibular arch was fabricated with four Morse taper implant analogs of 4.5×6mm. Four different bars were manufactured according to different material and techniques: fiber-reinforced resin (G1, Trinia, CAD/CAM), commercially pure titanium (G2, cpTi, CAD/CAM), cobalt‑chromium (G3, Co-Cr, CAD/CAM) and cobalt‑chromium (G4, Co-Cr, conventional cast)...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28870541/lay-preferences-for-dentogingival-esthetic-parameters-a-systematic-review
#10
REVIEW
Stefano Del Monte, Kelvin I Afrashtehfar, Elham Emami, Samer Abi Nader, Faleh Tamimi
STATEMENT OF PROBLEM: An objective definition of the characteristics that render a smile esthetically acceptable in the eye of laypeople is lacking. PURPOSE: The purpose of this systematic review was to identify, appraise, and synthesize the available evidence on the opinion of laypeople regarding the dentogingival characteristics that render a smile esthetically acceptable. The evidence was collected by surveying with standardized digitally modified smile images...
September 1, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28866149/three-dimensional-finite-element-analysis-of-occlusal-splint-and-implant-connection-on-stress-distribution-in-implant-supported-fixed-dental-prosthesis-and-peri-implantal-bone
#11
Vívian Dos Santos Marsico, Roberto Brunow Lehmann, Cristiane Aparecida de Assis Claro, Marina Amaral, Rafael Pino Vitti, Ana Christina Claro Neves, Lais Regiane da Silva Concilio
The aim of this study was to investigate the influence of occlusal splint therapy on the stress distribution of implant-supported fixed dental prosthesis (FDP) and peri-implantal bone structures using three-dimensional (3D) finite element analysis (FEA). The system consisted of two implants (positioned on region of second premolar and second molar) as retainers of fixed porcelain-fused-to-metal 3-unit FDP (first molar as pontic element). Two implant connections systems (external and internal hexagon) were tested...
November 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28863912/prevalence-of-extraction-space-reopening-in-different-orthodontic-treatment-protocols
#12
Guilherme Janson, Danilo Pinelli Valarelli, Mayara Rizzo, Fabrício Pinelli Valarelli
INTRODUCTION: In this study, we aimed to compare the amount and frequency of extraction space reopening after 2- and 4-premolar extraction treatments in Class II and 4-premolar extractions in Class I malocclusion patients. METHODS: The sample comprised 105 subjects with full-cusp Class II and Class I malocclusions, divided into 3 groups. Group 1 consisted of 33 full-cusp Class II malocclusion patients treated with a 2-premolar extraction protocol. Group 2 had 34 full-cusp Class II malocclusion patients treated with 4-premolar extractions, and group 3 included 38 Class I malocclusion patients treated with 4-premolar extractions...
September 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28862588/phantom-bite-a-real-or-a-phantom-diagnosis-a-case-report
#13
Ben A Sutter
This case report describes computer-guided occlusal therapy in a patient who met the unified diagnostic criteria for phantom bite. After a review of the patient's medical history, along with a diagnostic work-up that included cone beam computed tomography, temporomandibular joint vibration analysis, and digital occlusal analysis, problematic dental components were discovered (including prolonged disclusion time and imbalanced bite force). A digital occlusal analyzer evaluated the patient's occlusion and systematically guided the necessary changes...
September 2017: General Dentistry
https://www.readbyqxmd.com/read/28861394/long-term-survival-of-retained-deciduous-mandibular-second-molars-and-maxillary-canine-incorporated-into-final-occlusion
#14
Soonshin Hwang, Yoon Jeong Choi, Chooryung J Chung, Kyung-Ho Kim
Orthodontic treatment of a complex case that involves retained deciduous mandibular second molars with missing permanent successors is challenging. Usually, congenitally missing teeth are manifested with other dental anomalies that further complicate orthodontic treatment, such as retained deciduous teeth, impactions, transpositions and peg-shaped lateral incisors. Even though the long term prognosis of the retained deciduous tooth is not fully predictable, if the teeth are in good condition, the patient and clinician may incline towards a decision to preserve the deciduous teeth as long as possible...
September 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28853154/oral-health-of-community-dwelling-older-australian-men-the-concord-health-and-ageing-in-men-project-champ
#15
F A C Wright, S K-Y Chu, K L Milledge, E Valdez, G Law, B Hsu, V Naganathan, V Hirani, F M Blyth, D G Le Couteur, J Harford, L M Waite, D J Handelsman, M J Seibel, R G Cumming
BACKGROUND: CHAMP is a cohort study of the health of a representative sample of Australian men aged 70 years and older. The aim of this report is to describe the oral health of these men. METHODS: Oral health was assessed when the men were all aged 78 years or older. Two calibrated examiners conducted a standardised intra-oral assessment. Descriptive data, with means and confidence intervals where appropriate, were analysed by statistical association tests. Participants were excluded from the collection of some periodontal assessments if they had a medical contraindication...
August 29, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28846561/incidence-and-management-of-fractured-dental-implants-case-reports
#16
Soo-Young Jin, Su-Gwan Kim, Ji-Su Oh, Jae-Seek You, Mi-Ae Jeong
The fracture of dental implants is a rare occurrence in clinical settings. Possible causes of implant fracture include design or production flaws, overloaded occlusion force, implant location, metal fatigue, and bone resorption around the implant. This study reports on the successful removal and reimplantation of fractured implants.
August 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28843960/interfacial-degradation-of-adhesive-composite-restorations-mediated-by-oral-biofilms-and-mechanical-challenge-in-an-extracted-tooth-model-of-secondary-caries
#17
Carola A Carrera, Yuping Li, Ruoquiong Chen, Conrado Aparicio, Alex Fok, Joel Rudney
Objective To study the combined effect of simulated occlusal loading and plaque-derived biofilm on the interfacial integrity of dental composite restorations, and to explore whether the effects are modulated by the incorporation of sucrose. Methods MOD-class-II restorations were prepared in third molars. Half of the specimens (n = 27) were subjected to 200,000 cycles of mechanical loading using an artificial oral environment (ART). Then, both groups of specimens (fatigued and non-fatigued) were divided into three subgroups for testing in CDC-reactors under the following conditions: no biofilm (Control), biofilm with no sucrose (BNS) and biofilm pulsed with sucrose (BWS)...
August 23, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28841033/exploring-the-impact-of-malocclusion-and-dentofacial-anomalies-on-the-occurrence-of-traumatic-dental-injuries-in-adolescents
#18
Paulo Floriani Kramer, Luciana M Pereira, Mariana Cezar Ilha, Tássia Silvana Borges, Maria Perpétua Mota Freitas, Carlos Alberto Feldens
OBJECTIVE: To investigate the association between malocclusion/dentofacial anomalies and traumatic dental injuries (TDI) in adolescents. MATERIALS AND METHODS: The sample of this cross-sectional study comprised 509 adolescents aged 11 to 14 years enrolled at public schools in the city of Osório, southern Brazil. Parents answered a structured questionnaire addressing demographic and socioeconomic characteristics. An examiner who had undergone a training and calibration exercise recorded malocclusion/dentofacial anomalies (Dental Aesthetic Index, DAI), TDI (Andreasen), and dental caries (World Health Organisation)...
August 25, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28838773/spasmodic-torticollis-after-orthognathic-surgery
#19
R Nicot, M Schlund, S Konopnicki, J Ferri
The treatment of malocclusions can involve orthognathic surgery. Although orthognathic surgery is a safe surgical procedure, low incidences of many complications have been reported such as infections, hemorrhage, nerve injuries, temporomandibular disorders (TMDs), and psychological problems. There are no reports in the literature of orthognathic surgery being associated with postural disorders although the link between dental occlusion and postural disorders is highlighted in numerous recent publications. This report describes the case of a young, healthy patient who presented with sustained spasmodic torticollis following orthognathic surgery...
August 28, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28837608/reduced-statherin-in-acquired-enamel-pellicle-on-eroded-teeth-compared-to-healthy-teeth-in-the-same-subjects-an-in-vivo-study
#20
Mahdi Mutahar, Saoirse O'Toole, Guy Carpenter, David Bartlett, Manoharan Andiappan, Rebecca Moazzez
The aim of this in-vivo study was to compare total protein and four key salivary proteins present in the acquired enamel pellicle (AEP) on eroded and non-eroded surfaces in participants with erosive tooth wear. Participants with erosive tooth wear of dietary non-intrinsic origin, present on the occlusal surfaces of the lower first molars and an unaffected posterior occlusal surface in the same quadrant were recruited from restorative dental clinics at King's College London Dental Institute (n = 29, REC ref 14/EM/1171)...
2017: PloS One
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