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https://www.readbyqxmd.com/read/28219251/childhood-intelligence-and-early-tooth-wear-patterns
#1
Tuomo Heikkinen, Jaana Rusanen, Koshi Sato, Paula Pesonen, Virpi Harila, Lassi Alvesalo
OBJECTIVE: The aim of this study is to explore the relationships between early dental wear patterns and preschool IQ (Intelligence Quotient, by Stanford-Binet) of the child to illuminate the historic relationship of mental queries and bruxism. METHODS: The dental study participants were 864 Euro-American preschool and school children whose IQs were tested for school maturity purposes at the age of 4 years, followed by dental data in a cross-sectional manner at the mean age of 7...
February 20, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28216839/a-study-on-the-wear-of-enamel-caused-by-monolithic-zirconia-and-the-subsequent-phase-transformation-compared-to-two-other-ceramic-systems
#2
Amreen Rupawala, Smita I Musani, Pallavi Madanshetty, Ramandeep Dugal, Umang D Shah, Ektaa J Sheth
PURPOSE: The purpose of this in vitro research project was to evaluate and compare the wear behavior of human tooth enamel opposing monolithic zirconia and other different ceramic restorative materials and also to observe the tetragonal to monoclinic phase transformation in zirconia-based ceramics that may occur while simulating wear occurring at room temperature in a wet environment. MATERIALS AND METHODS: A total of sixty samples were prepared for this study. Fifteen discs of glazed zirconia, 15 discs of polished zirconia without glaze, 15 discs of metal ceramic, and 15 discs of lithium disilicate were fabricated...
January 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28213765/association-between-signs-and-symptoms-of-bruxism-and-presence-of-tori-a-systematic-review
#3
Eduardo Bertazzo-Silveira, Juliana Stuginski-Barbosa, André Luís Porporatti, Bruce Dick, Carlos Flores-Mir, Daniele Manfredini, Graziela De Luca Canto
OBJECTIVE: This systematic review aims to answer the question: "Is there an association between any specific signs and symptoms of bruxism and the presence of tori?" MATERIAL AND METHODS: Observational studies, which evaluated the association between signs and symptoms of bruxism and tori, were selected. Signs and symptoms of bruxism (such as teeth grinding, jaw clenching, abnormal tooth wear, facial muscle hypertrophy, pain, or fatigue) had to be determined by questionnaire or anamnesis and tori within clinical assessment...
February 17, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28202072/a-pilot-randomised-controlled-trial-evaluating-mini-and-conventional-implant-retained-dentures-on-the-function-and-quality-of-life-of-patients-with-an-edentulous-mandible
#4
Sarra Jawad, Craig Barclay, William Whittaker, Martin Tickle, Tanya Walsh
BACKGROUND: Total tooth loss (edentulism) can be a debilitating condition, impacting on ability to chew, speak and interact with others. The most common treatment is with complete removable dentures, which may be successful, but in the lower jaw, bone resorption that worsens over time makes denture-wearing difficult. Two dental implants in the mandible to retain the lower denture has been advocated as the gold standard of treatment, but has not been universally provided due largely to financial constraints and also patient fear...
February 15, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28190924/hyperglycemia-simultaneously-induces-initial-caries-development-and-enhances-spontaneous-occlusal-surface-wear-in-molar-teeth-related-to-parotid-gland-disorder-in-alloxan-induced-diabetic-rats
#5
Taiki Nishimoto, Yasushi Kodama, Tetsuro Matsuura, Kiyokazu Ozaki, Yoshihiko Taniguchi
Diabetes and salivary gland dysfunction are major factors that induce dental caries in experimental animals, but there are no reports analyzing the association of dental caries and salivary glands in an animal model of diabetes mellitus (DM). To clarify the initial development of dental caries and preceding salivary gland disorder, we performed a histopathological analysis on teeth and salivary glands in diabetic Wistar rats 7 weeks after alloxan treatment (DM group) in comparison with nondiabetic rats (Non-DM group) and functional analysis on saliva secretion during the experimental period...
January 2017: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/28176000/multifactorial-logistic-regression-analysis-of-factors-associated-with-the-incidence-of-erosive-tooth-wear-among-adults-at-different-ages-in-tokyo
#6
Yuichi Kitasako, Y Sasaki, T Takagaki, A Sadr, J Tagami
OBJECTIVES: The aim of this study was to evaluate factors associated with the incidence of erosive tooth wear (ETW) among adults at different ages in Tokyo using multifactorial logistic regression analysis. MATERIALS AND METHODS: The study sample consisted of a total of 1108 subjects aged 15 to 89 years in Tokyo, Japan. Two examiners evaluated ETW in a full-mouth recording. The subjects were asked to complete a self-administered daily diet, habit, and health condition questionnaire...
February 7, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28170452/implications-of-wear-at-the-titanium-zirconia-implant-abutment-interface-on-the-health-of-peri-implant-tissues
#7
Andrew Tawse-Smith, Sunyoung Ma, Warwick J Duncan, Andrew Gray, Malcolm R Reid, Alison M Rich
PURPOSE: To investigate the presence of metallic particles in the peri-implant mucosa around titanium dental implants after 5 years of loading using single-implant crowns with respect to clinical signs of peri-implant inflammation. MATERIALS AND METHODS: Sixteen participants from an ongoing, prospective, single-arm clinical trial who had received titanium dental implants restored with single maxillary crowns veneered to zirconia abutments were available for the study...
February 7, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28167334/in-vitro-enamel-erosion-and-abrasion-inhibiting-effect-of-different-fluoride-varnishes
#8
Adílis Kalina Alexandria, Thiago Isidro Vieira, Matheus Melo Pithon, Tatiana Kelly da Silva Fidalgo, Andréa Fonseca-Gonçalves, Ana Maria Gondim Valença, Lúcio Mendes Cabral, Lucianne Cople Maia
OBJECTIVE: To investigate the erosion and abrasion inhibiting effect of CPP-ACP/NaF and xylitol/NaF varnishes. METHODS: Bovine enamel samples (n=40) were exposed to the following treatments (n=10): NaF varnish (Duraphat(®), positive control); CPP-ACP/NaF varnish (MI varnishTM); xylitol/NaF (Profluorid(®)) or distilled and deionized water (MilliQ(®), negative control). The samples were submitted for 3days to 4 cycles/day of erosion (5min in Sprite Zero) and 2 cycles of abrasion/day after the first and last erosive challenge, with a toothbrush machine and slurries of a placebo toothpaste for 15s (50 strokes/s)...
January 27, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28161365/a-randomised-clinical-trial-to-determine-the-abrasive-effect-of-the-tongue-on-human-enamel-loss-with-and-without-a-prior-erosive-challenge
#9
J Seong, N Claydon, E Macdonald, S Garner, R G Newcombe, N West
OBJECTIVES: To investigate the abrasive effect of the tongue on human enamel loss with and without a prior dietary acid challenge in an in situ model. METHODS: A single centre, single blind, randomly allocated, split mouth, four treatment regimen, in situ study in healthy adult volunteers was undertaken. Twenty four subjects wore two lower intra-oral appliances each fitted with 4 human enamel samples 6h/day for 15 days. The samples were treated with either 50ml orange juice or water for 5min ex vivo 4x/day; prior to being licked or not licked with the subject's tongue for 60s...
February 1, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28160942/correlation-between-symptoms-and-external-characteristics-of-cracked-teeth-findings-from-the-national-dental-practice-based-research-network
#10
Thomas J Hilton, Ellen Funkhouser, Jack L Ferracane, Gregg H Gilbert, Camille Baltuck, Paul Benjamin, David Louis, Rahma Mungia, Cyril Meyerowitz
BACKGROUND: Cracked teeth are ubiquitous in the adult dentition. The objective of this study was to determine which patient traits and behaviors and external tooth and crack characteristics correlate with cracked teeth being symptomatic. METHODS: Dentists in The National Dental Practice-Based Research Network enrolled a convenience sample of patients each with a single, vital posterior tooth with at least 1 observable external crack in this observational study; they enrolled 2,975 cracked teeth from 209 practitioners...
February 2, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28155241/effects-of-attention-deficit-hyperactivity-disorder-signs-and-socio-economic-status-on-sleep-bruxism-and-tooth-wear-among-schoolchildren-structural-equation-modelling-approach
#11
Isabella Mota-Veloso, Roger Keller Celeste, Cynthia Pimenta Fonseca, Maria Eliza Consolação Soares, Leandro Silva Marques, Maria Letícia Ramos-Jorge, Joana Ramos-Jorge
BACKGROUND: The prevalence of both bruxism and attention deficit hyperactivity (ADHD) has increased in recent years. AIM: This study evaluated the direct and indirect effects of signs of ADHD, reported by parents/caregivers and teachers, with sleep bruxism. In addition, this study explores the effects of socio-economic status (SES) on sleep bruxism. DESIGN: This cross-sectional study was performed in Diamantina, Brazil, with 851 randomly selected schoolchildren aged 6-12 years...
February 3, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28133715/factors-affecting-dental-biofilm-in-patients-wearing-fixed-orthodontic-appliances
#12
Li Mei, Joyce Chieng, Connie Wong, Gareth Benic, Mauro Farella
BACKGROUND: The aim of this study is to investigate the amount and the distribution of biofilm in patients wearing fixed appliances and its relation with age, gender, frequency of tooth brushing, and patient motivation. METHODS: The sample comprised 52 patients (15.5 ± 3.6 years old, 30 females and 22 males) wearing fixed orthodontic appliances. Dental biofilm was assessed using a modified plaque index (PI). A questionnaire was used to collect patient's information, including gender, age, treatment motivation, and frequency of tooth brushing...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28118419/temporomandibular-disorder-pain-and-related-factors-in-an-adult-population-a-cross-sectional-study-in-southern-sweden
#13
Susanna Gillborg, Sigvard Åkerman, Nina Lundegren, Ewa Carin Ekberg
AIMS: To measure the prevalence of temporomandibular disorder (TMD) pain and examine its association with gender and other factors in an adult population in southern Sweden. METHODS: In 2006, a questionnaire was sent to randomly selected individuals (n = 10,000) aged 20 to 89 years. Two specific questions were used to screen individuals with TMD pain, and an additional 16 questions were analyzed regarding the subjects' relation to TMD pain. The chi-squared test was used to compare the distribution of categorical variables, and factors possibly related to TMD pain were analyzed by using logistic regression models with a likelihood-ratio test...
January 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28066812/the-denture-associated-oral-microbiome-in-health-and-stomatitis
#14
Baochen Shi, Tingxi Wu, Jeffrey McLean, Anna Edlund, Youngik Young, Xuesong He, Hongyang Lv, Xuedong Zhou, Wenyuan Shi, Huiying Li, Renate Lux
While investigation of the microbiome on natural oral surfaces has generated a wealth of information, few studies have examined the microbial communities colonizing dentures and their relationship to oral health. To address this knowledge gap, we characterized the bacterial community associated with dentures and remaining teeth in healthy individuals and patients with denture stomatitis. The microbiome compositions of matched denture and tooth plaque samples of 10 healthy individuals and 9 stomatitis patients were determined by 16S rRNA gene pyrosequencing...
November 2016: MSphere
https://www.readbyqxmd.com/read/28042280/advancements-in-all-ceramics-for-dental-restorations-and-their-effect-on-the-wear-of-opposing-dentition
#15
REVIEW
Haroon Rashid, Zeeshan Sheikh, Syed Misbahuddin, Murtaza Raza Kazmi, Sameer Qureshi, Muhammad Zuhaib Uddin
Tooth wear is a process that is usually a result of tooth to tooth and/or tooth and restoration contact. The process of wear essentially becomes accelerated by the introduction of restorations inside the oral cavity, especially in case of opposing ceramic restorations. The newest materials have vastly contributed toward the interest in esthetic dental restorations and have been extensively studied in laboratories. However, despite the recent technological advancements, there has not been a valid in vivo method of evaluation involving clinical wear caused due to ceramics upon restored teeth and natural dentition...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28035689/oral-health-of-children-with-attention-deficit-hyperactivity-disorder
#16
Yvonne C Y Chau, Kelly Y C Lai, Colman P J McGrath, Cynthia K Y Yiu
This study assessed and compared oral health and oral-health behaviours among children with and without attention deficit hyperactivity disorder (ADHD). The study included 31 children, 12-18 yr of age, with ADHD and 31 age- and gender-matched children without ADHD. Clinical data were recorded by a trained and calibrated examiner for caries, traumatic dental injuries, periodontal health, tooth wear, and salivary function. A questionnaire was also given to parents or caregivers about the oral health habits and behaviours of these children...
February 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28035661/evidence-of-toothpick-groove-formation-in-neandertal-anterior-and-posterior-teeth
#17
Almudena Estalrrich, José Antonio Alarcón, Antonio Rosas
OBJECTIVES: During the microscopic examination of the Neandertal dentitions from El Sidrón (Spain) and Hortus (France), we found unusual fine parallel microstriations on the mesial and distal sides of all tooth types, near the cervix. As its appearance was similar to toothpick grooves described in other Homo species, it could correspond to early stages on its formation. To test this hypothesis we developed an experimental replication of a groove using grass stalks. MATERIALS AND METHODS: Comparisons between 204 isolated Neandertal teeth and the two experimental dental specimens corroborate that the marks correspond to initial stages of toothpick groove formation, and we propose a five-grade recording scale that summarized the groove formation process...
December 30, 2016: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28032898/age-related-morphological-histological-and-functional-changes-in-teeth
#18
REVIEW
T S Carvalho, A Lussi
Throughout lifetime, the teeth are continuously exposed to numerous chemical and physical impacts, which cause the wear of the dental hard tissues, gingival recession and other oral changes with sometimes subsequent problems. Age-related wear of tooth surfaces reduces the dental enamel thickness and exposes deeper layers of enamel, which have different physical and chemical properties than the surface enamel. Gingival recession is the main causal factor of root caries and dentine hypersensitivity. Age-related changes in dentine include the formation of secondary dentine and the reduction in tubular lumen diameter (dentine sclerosis), which lead to a reduction in the volume of the pulp chamber...
December 29, 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28018570/immediate-fixed-partial-denture-after-tooth-extraction-in-patients-with-systemic-diseases-a-clinical-report
#19
Hyun Sun Kang, Su Young Lee
For patients with systemic diseases who face difficulties visiting dental clinics, wearing fixed partial denture in the anterior region on the same day of tooth extraction can reduce the total period of treatment and the number of visits, as well as post-treatment psychological effect on the patient.
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27981411/prevalence-of-erosive-lesions-with-respect-to-risk-factors-in-a-young-adult-population-in-poland-a-cross-sectional-study
#20
Izabela Strużycka, Adrian Lussi, Agnieszka Bogusławska-Kapała, Ewa Rusyan
OBJECTIVE: The study was conducted to investigate the prevalence of erosive lesions and related risk factors in the population of 18-year-old young adults in Poland. MATERIALS AND METHODS: Calibrated examiners measured erosive tooth wear according to Basic Erosive Wear Examination (BEWE) scoring system in 1869 patients and assessed the impact of risk factors with a questionnaire. RESULTS: Erosion was present in 42.3% of the patients. Early damage to the enamel was the most frequent finding (BEWE 1)-28...
December 15, 2016: Clinical Oral Investigations
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