- Fluoride Effects and Removal
- Dental Health and Care Utilization
- Dental Erosion and Treatment
- Nutritional Studies and Diet
- Oral microbiology and periodontitis research
- Dental Anxiety and Anesthesia Techniques
- Folate and B Vitamins Research
- Dental Education, Practice, Research
- Bone and Dental Protein Studies
- Dental Trauma and Treatments
- Dental Research and COVID-19
- Psychopathy, Forensic Psychiatry, Sexual Offending
- Pharmaceutical studies and practices
- Innovations in Medical Education
- Gastroesophageal reflux and treatments
- Analytical Chemistry and Sensors
- Analytical chemistry methods development
- Dental Radiography and Imaging
- Injury Epidemiology and Prevention
- Nutrition and Health in Aging
- Biochemical Analysis and Sensing Techniques
- Child Nutrition and Water Access
- Scientific Measurement and Uncertainty Evaluation
- Personality Disorders and Psychopathology
- Hemodynamic Monitoring and Therapy
Newcastle University
2013-2022
Newcastle Dental Hospital
2009-2020
University of Newcastle Australia
2005-2017
University of Dental Medicine
1996-2013
St. Vincent's University Hospital
2013
Canberra Hospital
2011
Academic Center for Dentistry Amsterdam
2006
Waypoint Centre for Mental Health Care
1986-1987
East Lancashire Hospitals NHS Trust
1978
University College Hospital
1964
<i>Background/Aims:</i> Currently available techniques for fluoride analysis are not standardized. Therefore, this study was designed to develop standardized methods analyzing in biological and nonbiological samples used dental research. <i>Methods:</i> A group of nine laboratories analyzed a set concentration using their own methods. The then reviewed existing analytical analysis, identified inconsistencies the use these conducted testing resolve differences. Based...
Abstract Material and methods: Dental examinations were carried out on 354 boys aged 5–6 years, 862 12–14 attending 40 schools in Riyadh. The prevalence of dental erosion was assessed using diagnostic criteria similar to those employed the 1993 UK National Survey Child Health. Results: Pronounced (into dentine or pulp) observed 34% year olds 26% olds. Information food drink consumed dietary habits obtained by means a questionnaire. Parents reported that 65% old took bed. Water commonest...
Fifty-two long-term survivors of childhood leukemia or solid tumors had a clinical dental examination along with 49 their siblings. The 52, an additional 30 examined in previous study, were studied radiologically panoramic tomogram. All children received chemotherapy for 2 3 years and irradiation on standard protocols the tumor group 6 to 24 months. There was no difference between siblings patients caries, gingivitis, oral hygiene, mouth opening, overjet, overbite. More solid-tumor abnormal...
Ratings of the dangerousness 360 men in a maximum security psychiatric institution were obtained from experienced forensic clinicians. These ratings well predicted (R = .61) historical, offense, and in-hospital data. Seriousness outcome scores based upon an 11-year minimum follow-up time on 85 additional released same institution; this sample was constructed so that entire range outcomes, good to commission very serious crimes against persons, represented. The seriousness variable sets used...
The aim of this study was to examine the relationship between total daily fluoride intake (TDFI), urinary excretion (DUFE) and fractional retention (FFR) using available data, in order clarify ability DUFE predict TDFI and, therefore, risk fluorosis development. Examination published reports simultaneous measurement DUFE, together with data from two unpublished Chilean studies, yielded for 212 children aged less than 7 years 283 adults 18–75 years, providing a 269 points, respectively....
Abstract – This study involved 354 boys aged 5–6 years and 862 12–14 years, attending 40 schools in Riyadh. All children were examined at school by a single dental examiner, using criteria similar to those employed the survey of children’s health United Kingdom. The prevalence trauma Saudi was 33%. most common type fracture enamel (71%) followed loss tooth due (13%), into dentine (7%), discolouration (5%), pulp involvement (4%). No relationship between degree overjet occurrence primary...
Objective. The reduced use of sugars‐containing (SC) liquid medicines has increased the other dose forms, potentially resulting in more widespread dental effects, including tooth wear. aim this study was to assess erosive potential 97 paediatric vitro . Methods. took form measurement endogenous pH and titratable acidity (mmol). Endogenous measured using a meter, followed by titration 7.0 with 0.1‐ m NaOH. Results. Overall, 55 (57%) formulations had an < 5.5. mean ( ± SD) for 41 SC were...
To determine the association between social deprivation and prevalence of caries (including lesions restricted to enamel) enamel fluorosis in areas that are served by either fluoridated or non-fluoridated drinking water using clinical scoring, remote blinded, photographic scoring for fluorosis. The study also aimed explore use remote, blinded methodologies minimize effect examiner bias.Subjects were male female lifetime residents aged 11-13 years. Clinical assessments performed on permanent...
International Journal of Paediatric Dentistry 2011; 22: 68–76 Background. The change towards a more Westernised diet in Libya may increase the risk caries and erosion children. Aims. To investigate any association between dental caries, erosion, potential dietary factors Libyan schoolchildren. Methods. A random sample 791 schoolchildren aged 12 years underwent examination for completed questionnaire to provide data. Dental was assessed using WHO (Oral Health Surveys: Basic Methods, 1997)...
This multicenter 3-arm, parallel-group, patient-randomized controlled trial compared clinical effectiveness of 3 treatment strategies over y for managing dental caries in primary teeth UK care. Participants aged to 7 with at least 1 molar dentinal carious lesion were randomized across arms (1:1:1 via centrally administered system variable-length random permuted blocks): C+P, conventional management (complete tooth tissue removal and restoration placement) prevention; B+P, biological (sealing...
Background Historically, lack of evidence for effective management decay in primary teeth has caused uncertainty, but there is emerging to support alternative strategies conventional fillings, which are minimally invasive and prevention orientated. Objectives The objectives were (1) assess the clinical effectiveness cost-effectiveness three managing caries (2) quality life, dental anxiety, acceptability experiences children, parents professionals, development and/or progression. Design This...
A large number of liquid oral medicines contain sugars and there is concern for the dental health children requiring this medication long-term chronic medical problems. Ninety-four chronically sick aged 2–17 years taking sugar-based or sugar-free 1 year more, their 92 siblings were dentally examined. The problems included epilepsy, cystic fibrosis, renal failure, asthma, recurrent urinary tract infections, cardiac disease constipation. Ordinal logistic regression analysis compared...
There are several causes of erosion – acidic foods and drinks have been implicated reducing their erosive potential would seem an important area research. Calcium-citrate-malate (CCM) appeared to potentially useful properties as anti-erosion additive. The study aims were test the ability intra-oral enamel slab system measure compare a citric acid-based orange juice drink either with or without added CCM positive negative control. Eleven adults wore upper removable appliance for four periods...
This study was designed to measure total intake, urinary excretion and estimated retention of fluoride in children under customary intake conditions, living either fluoridated or low-fluoride areas north-east England. Subsidiary aims were investigate the relationships between variables measured.Using a randomized cluster design with schools as sampling units, four from non-fluoridated area two selected chosen participate study. Fluoride diet toothbrushing assessed using 3-day food diary...
There is a lack of evidence for effective management dental caries (decay) in children's primary (baby) teeth and an apparent failure conventional restorations (fillings) to prevent pain infection UK children Primary Care. schools' teaching has been based on British Society Paediatric Dentistry guidance which recommends that should be removed restoration placed. However, the base this limited volume quality, comes from studies conducted either secondary care or specialist practices....
Fluoridated toothpaste is effective for dental caries control, yet may be a risk factor fluorosis. This study aimed to quantify fluoride ingestion from by children and investigate the effects of age, gender, social class on amount ingested per toothbrushing session. Sixty‐one children, 4–6 yr were recruited: 38 low socio‐economic ( LSE ) areas N ewcastle, UK , 23 high HSE . All expectorated saliva, rinse water (if used), residual collected after brushing at home analysed fluoride. Of 74% 69%...
Background As a recognised effective and economical agent for dental caries prevention, fluoride has been used in many different fluoridation schemes implemented across the world. Considering narrow ‘dose-gap’ between benefit of reduction risk fluorosis, it is recommended that intake monitored by measuring urinary excretion. The aim this scoping review to map current literature/evidence on excretion studies relation study population, settings, type design, methodology, analytical approach....
It has been suggested that systemic fluoride absorption from drinking water may be influenced by the type of compound in and hardness. Using a human double-blind cross-over trial, we conducted this study to measure c max , T Area Under Curve (AUC) for plasma F concentration against time, following ingestion naturally fluoridated hard soft waters, artificially reference water. Mean AUC over 0 8 hours was 1330, 1440, 1679, 1566, 1328 ng F•min•mL −1 soft, hard, respectively, with no...
The main aim of this study was to determine how representative the fluoride/creatinine (F/Cr) ratio a spot urinary sample is fluoride content 24-h urine in young children aged 12-36 months. Subsidiary objectives were to: (a) evaluate use samples monitoring exposure and (b) estimate retention very children.Seven healthy residing fluoridated area completed study. Dietary information obtained using 3-day estimated food diary followed by an interview on fourth day. Samples foods drinks analysed...