Investigation of new complete denture quality and patients' satisfaction with and use of dentures after two years.

Objectives: To investigate if clinical quality of new complete dentures predicts patient satisfaction with and usage of those dentures two years after insertion in the same way that it did initially and three months after insertion.

Methods: Four hundred and seventeen patients recruited to a denture outcome study two years previously were surveyed. In each case aspects of denture quality had previously been rated according to a validated method at the first post-insertion visit and patients had completed a postal questionnaire three months after denture insertion.

Efficacy of bovine bone mineral for alveolar augmentation: a human histologic study.

The purpose of this study was to evaluate the osteoconductivity of bovine bone mineral in humans. Fifteen patients referred to a private specialist surgical practice were treated consecutively for the repair of alveolar defects, and/or ridge maintenance at the site of extraction sockets, prior to implantation. Bio-Oss xenograft (Geistlich Pharma, Wolhusen, Switzerland) was utilized as the principal grafting material.

Attitudes towards the use of hand over mouth (HOM) and physical restraint amongst paediatric specialist practitioners in the UK.

Purpose: To assess the views of paediatric specialist dental practitioners in the United Kingdom of the use of the hand over mouth technique and physical restraint.

Methods: Questionnaire survey of all specialist dental practitioners in paediatric dentistry in the United Kingdom (n = 216). Replies were received from 179 individuals (82.

Materials for impressions--2003.

Thirty years ago the author set out the logical sequence of dimensional changes that could occur in the impression materials of the 1970s. In the 21st Century, it appears that little has changed and that what the dental practitioner requires today is the same as it always was--a forgiving material that produces perfect impressions with a minimum of trauma to the patient, dentist and technician.

The restorative management of hypodontia with implants: 2. Planning and treatment with implants.

The first paper discussed the clinical features of patients with hypodontia. A range of treatment options were considered with examples given. In this second paper, the implant treatment option for patients is discussed in detail.

A comparative study of the static and kinetic frictional resistance of titanium molybdenum alloy archwires in stainless steel brackets.

This ex vivo study compared the static and kinetic frictional resistance of eight different archwires tested in a single, stainless steel, zero base 0.022 x 0.028 inch (0.

The complex genetics of cleft lip and palate.

Clefts of the lip and palate are a common craniofacial anomaly, requiring complex multidisciplinary treatment and having lifelong implications for affected individuals. The aetiology of both cleft lip with or without cleft palate (CLP) and isolated cleft palate (CP) is thought to be multifactorial, with both genetic and environmental factors playing a role. In recent years, a number of significant breakthroughs have occurred with respect to the genetics of these conditions, in particular, characterization of the underlying gene defects associated with several important clefting syndromes.

Cement- and screw-retained implant-supported prostheses: up to 10 years of follow-up of a new design.

Purpose: This retrospective study investigated treatment outcomes over 10 years of a new prosthesis design in implant prosthodontics that uses a combined cement- and screw-retained principle.

Materials And Methods: The clinical data of 78 implant-supported prostheses were examined. Each prosthesis incorporated at least 1 screw-retained element and 1 or more cement-retained telescopic units.

Opg, Rank, and Rankl in tooth development: co-ordination of odontogenesis and osteogenesis.

Osteoprotegerin (OPG), receptor activator of nuclear factor-kappaB (RANK), and RANK ligand (RANKL) are mediators of various cellular interactions, including bone metabolism. We analyzed expression of these three genes during murine odontogenesis from epithelial thickening to cytodifferentiation stages. Opg showed expression in the thickening and bud epithelium.

A dual role for Ikk alpha in tooth development.

IKK alpha is a component of the I kappa B kinase (IKK) complex that plays a key role in the activation of NF-kappa B. In Ikk alpha mutant mice and mice expressing a transdominant negative mutant of I kappa B alpha (cI kappa B alpha Delta N), molars have abnormal cusps, indicating that Ikk alpha is involved in cusp formation through the NF-kappa B pathway. However, Ikk alpha mutant incisors also have an earlier phenotype where epithelium evaginates outward into the developing oral cavity rather than invaginating into the underlying mesenchyme.

The restorative management of hypodontia with implants: I. Overview of alternative treatment options.

The first part of this paper discusses the clinical features of patients with hypodontia. Medical, social and clinical factors must be taken into account, along with risks and benefits, before a treatment plan can be recommended and implemented for a patient. An overview of treatment options are considered with examples.

Traf6 is essential for murine tooth cusp morphogenesis.

Ectodermal appendages such as skin, hair, teeth, and sweat glands are affected in patients with hypohidrotic (anhydrotic) ectodermal dysplasia (HED). It has been established that mutations in the tumor necrosis factor (TNF) superfamily of molecules, i.e.

Maintenance requirements of implant-supported fixed prostheses opposed by implant-supported fixed prostheses, natural teeth, or complete dentures: a 5-year retrospective study.

Purpose: The purpose of this study was to compare the maintenance requirements of implant-supported fixed prostheses with cantilever arms in edentulous jaws when opposed by fixed prostheses of similar design, by natural teeth, or by complete dentures.

Materials And Methods: The maintenance requirements for the 5-year follow-up period were obtained by examining the dental records of 37 people. Six were provided with fixed prostheses in both arches, 22 with a fixed prosthesis in the mandible opposed by a complete denture, and 9 with a fixed prosthesis opposed by natural teeth.

Tooth-supported stud-retained prostheses: three case reports.

The use of teeth as overdenture abutments is a common form of treatment. However, most roots are used only fur support. Simple stud precision attachments will also aid the retention of the prosthesis.

Bonding of photo and dual-cure adhesives to root canal dentin.

This study evaluated the regional tensile bond strength of a dual-cure resin composite core material to root canal dentin using photo and dual-cure adhesives and different modes of polymerization. Nineteen extracted premolars were decoronated and their root canals prepared to a depth of 8 mm and a width of 1.4 mm using Para Post drills.

Admission as a dental student to the former UMDS and its relationship to socio-demographic characteristics.

Objectives: To describe the socio-demographic characteristics of successful and unsuccessful applicants to one UK dental school over a period of five years. To compare the characteristics of successful and unsuccessful candidates.

Design: Retrospective analysis of admissions data for the former United Medical and Dental Schools of Guy's and St Thomas' (UMDS) dental school provided by Universities and Colleges Admissions Service (UCAS) for a five year period (1994-1998).

Candida albicans secreted aspartyl proteinases in virulence and pathogenesis.

Candida albicans is the most common fungal pathogen of humans and has developed an extensive repertoire of putative virulence mechanisms that allows successful colonization and infection of the host under suitable predisposing conditions. Extracellular proteolytic activity plays a central role in Candida pathogenicity and is produced by a family of 10 secreted aspartyl proteinases (Sap proteins). Although the consequences of proteinase secretion during human infections is not precisely known, in vitro, animal, and human studies have implicated the proteinases in C.

Case report--Scanora imaging of an unusual unerupted tooth located entirely below the inferior dental canal.

We present an unusual case of an unerupted tooth located beneath the inferior dental canal (IDC) seen as an incidental finding on a dental panoramic radiograph (DPR). An unerupted premolar was identified on the DPR lying horizontally and located entirely below the inferior dental canal in the first and second molar region. The crown was distally orientated and was somewhat demineralised.

Adducin expression in cutaneous and oral lesions: alpha- and beta-adducin transcripts down-regulate with keratinocyte differentiation in stratified epithelia.

Adducin is a heterodimer of alpha- with beta- or gamma-subunits that regulates the assembly of the spectrin-based membrane skeleton in erythrocytes. Although adducin has been identified in various non-erythroid cells and tissues, it has been localized at intercellular junctions only in keratinocytes and epidermis. However, no data are available yet on the regulation of individual adducin genes in differentiating versus hyperproliferating keratinocytes.

Recruitment and retention of dental nurses and dental hygienists in general practice.

Purpose Of Study: To explore the recruitment and retention of dental nurses and dental hygienists working in general dental practice in West Kent, and to identify training needs.

Basic Procedure: Questionnaire survey of 195 general dental practices in West Kent.

Main Findings: Problems with turnover of staff were reported by 19% of practices.

Role of Islet1 in the patterning of murine dentition.

It is believed that mouse dentition is determined by a prepatterning of the oral epithelium into molar (proximal) and incisor (distal) regions. The LIM homeodomain protein Islet1 (ISL1) is involved in the regulation of differentiation of many cell types and organs. During odontogenesis, we find Islet1 to be exclusively expressed in epithelial cells of the developing incisors but not during molar development.

A prospective clinical study of Mineral Trioxide Aggregate and IRM when used as root-end filling materials in endodontic surgery.

Aim: To assess the success rate of the root-end filling material, Mineral Trioxide Aggregate (MTA).

Methodology: Referred adult patients were recruited using strict entry criteria and randomly allocated to receive MTA or IRM. A standardized surgical technique was employed: the root end was resected perpendicularly and a root-end cavity was prepared ultrasonically and filled.

Students' perceptions of the acceptability of behaviour management techniques.

The aim of the present study was to determine the perceptions of dental students of the acceptability of different forms of behaviour management for children. The effect of client characteristics (typically developing or learning disabled), intervention method (relaxation training and reinforcement or physical restraint) and treatment outcome (good or poor) on acceptability ratings made by fourth year dental students was determined. Students rated the acceptability of treatments on the basis of written vignettes using a standardized measure of the acceptability of behavioural treatments (the Treatment Evaluation Inventory, TEI, Kazdin, French and Sherick 1981).