bluuebunny/crossref_metadata_2025_split huggingface dataset:
Progressive systemic sclerosis – oro‐facial manifestations. Case report
Authors: Wardrop Robert W. , Heggie Andrew A. C. 
Published: May 2009

AbstractProgressive systemic sclerosis is a chronic disease characterized by diffuse sclerosis of connective tissue. Cutaneous and visceral tissues may be involved and there are oro‐facial manifestations of which dental practitioners should be aware. Facial skin rigidity and microstomia are features of the disorder which may compromise effective oral hygiene practices and render routine dental treatment more difficult. Radiographically there may be widening of the periodontal ligament spaces and loss of mandibular bone associated with muscular attachments.A case of scleroderma is presented which illustrates a typical presentation of the disease. The need for regular dental care in these patients is discussed.
Cavity design for Class IV composite resin restorations – a systematic approach
Authors: Darveniza M. 
Published: May 2009

AbstractA definitive cavity design, without pins, that enhances retention and resistance form for simple and complex Class IV composite restorations is proposed. An extracted tooth model and diagrams illustrate the incisal step 45° bevel design for simple cavities and the incisal step veneer bevel design for complex cavities. A case report of a complex Class IV composite restoration is presented.
Clinical evaluation of rebonded acid‐etch retained bridges
Authors: Creugers N. H. J. , Snoek P. A. , Vrijhoef M. M. A. 
Published: May 2009

AbstractAcid‐etch retained bridges are relatively easy to rebond after dislodgement. However, retention rates for rebonded bridges reported in other studies are conflicting. This study showed a significantly lower retention rate for rebonded bridges than for originally placed acid‐etch retained bridges. In most cases failure occurred as a cohesive fracture of the luting resin.
A comparison of five methods of root canal obturation by means of dye penetration
Authors: Gee John Yong 
Published: May 2009

AbstractRoot canals obturated by one of five methods were compared with respect to protection against dye penetration. A conventional lateral condensation technique using AH26 as sealer, while not significantly different from a technique employing a dentinal bonding agent (GLUMA) provided greatest protection. The use of dentinal bonding agents in conjunction with a suitable resin sealer and lateral condensation could result in a less permeable obturation.
Histological changes following transplantation of developing teeth to more advanced functional positions
Authors: Monsour F. N. T. , Adkins K. F. 
Published: May 2009

AbstractTeeth with half the root formed were transplanted to alternative sites where they were more advanced in eruption and consequently exposed to physical stimulation. All of the teeth survived, continued to erupt and gradually acquired satisfactory stability. The principal histological features were intrapulpal ossification, abundant cellular cementum, formation of intrapulpal ligaments and production of strong apical support. Under physical stimulation, the dental tissues adapted to produce results which were aesthetically and functionally satisfactory.
The dental status of 15‐year‐old South Australian students
Authors: Srikandi Tjitjik W. 
Published: May 2009

AbstractAn exploratory study of the dental health and habits of 15‐year‐old students from different socioeconomic levels revealed a generally low prevalence of caries experience (DMFT 3.3). Shallow periodontal pockets were found in an average of 0.4 sextants among 19.5 per cent of students, but gingivitis, calculus and overhanging margins of restorations were very common. The highest treatment needs were for oral health education (97.6 per cent) and scaling (69.6 per cent). Socioeconomic level was associated with the dental visit pattern and dental status; this confirmed other studies that found that the lower socio‐economic groups were at a disadvantage. There were indications that some minority ethnic groups had higher caries experiences and lower dental service utilization.
Corrosion and artificial caries‐like lesions around amalgam restorations
Authors: Silva Margarita , Zimmerman B. F. , Weinberg R. , Sarkar N. K. 
Published: May 2009

AbstractCorrosion of amalgam restorations may be a contributing factor in the development of secondary caries. Three commonly used alloys with different corrosion potentials were tested in vitro. The higher the corrosion resistance, the smaller was the artificial caries‐like lesion formed around the restoration.
Clinical evaluation of two materials for the bonding of composite resins to dentine: one‐year results
Authors: Tyas Martin J. 
Published: May 2009

AbstractNon‐undercut Class V abrasion cavities were restored using either Creation Bond dentine bonding agent and Visar‐Fil composite resin (42 cavities), or Dentin Adhesit dentine bonding agent with Silux composite (42 cavities) or Heliosit composite (31 cavities). No enamel etching was carried out. The restorations were examined after approximately one month, three months, six months and one year.The results showed a cumulative loss rate of Creative Bond/Visar‐Fil restorations of 55 per cent after one month, increasing to 96 per cent after one year. Comparative results were 52 per cent to 93 per cent for Adhesit/Silux restorations, and 23 per cent to 77 per cent for Adhesit/Heliosit restorations. Remaining restorations of all materials had varying degrees of marginal staining.
A survey of the gingival health of Indo‐Chinese child refugees. Part I
Authors: McAllan L. H. 
Published: May 2009

AbstractThe gingival health of 230 Indo‐Chinese children aged between five and twelve years was assessed after a period of resettlement in Australia ranging between one and eight years. In the preceding twelve months, all children had participated in at least one complete course of dental treatment which had included a prophylaxis and oral hygiene instruction. Comparison with a group of Australian children of a similar socio‐economic rating revealed a higher prevalence of gingival bleeding on probing in refugee children of all ages. Sixty‐two per cent of the Indo‐Chinese children in the study group had eleven or more sites of gingival bleeding, as opposed to twenty‐four per cent of the control group who were similarly affected. The similar experience of plaque for the Indo‐Chinese and Australian children in the older age groups would indicate the adoption of some oral hygiene practices by the older refugee children. In contrast, the prevalence and severity of calculus formation seen in these children was far in excess of that seen in the Australian children. Subgingival calculus was a common clinical finding for Indo‐Chinese children of all ages.
X‐ray equipment used by general dental practitioners in Australia
Authors: Monsour P. A. , Kruger B. J. , Barnes A. 
Published: May 2009

AbstractThis paper summarizes information on X‐ray units currently in use by general dental practitioners in Australia: the type and number of machines; tube potential; timer type; length of cable between X‐ray unit and timer; type of cone; and frequency of inspection and servicing. Approximately 6 per cent of Australian dentists in general practice now have pantomograph units. Only 25 per cent of dentists have their X‐ray units serviced regularly, and inspection of X‐ray units by health authorities is very variable.
Clinical performance of three dentine bonding agents in Class V abrasion lesions without enamel etching
Authors: Tyas Martin J. 
Published: May 2009

AbstractSeventy‐six Class V non‐undercut abrasion lesions were restored with composite and either Dentine Adhesive,† Bondlite,‡; or Dentin Bonding Agent,§ without enamel etching. Restorations were trimmed and polished after approximately three weeks, and evaluated for integrity and marginal staining. Recall evaluations were carried out at three months, six months and one year. The cumulative loss incidence at one year for Dentine Adhesive, Bondlite, and Dentin Bonding Agent was 83 per cent, 25 per cent, and 33 per cent, respectively. Restorations with Dentin Bonding Agent had the most severe marginal staining, while Bondlite restorations had least marginal staining.
Open mandibular condylotomy (osteotomy) with precision scaphoid staple osteosynthesis and meniscopexy. A description of the operation
Authors: Norman John E. de Burgh , Guthrie Phillip Bushell 
Published: May 2009

AbstractThe technical minutiae of the operation of open mandibular condylotomy and precision scaphoid staple osteosynthesis with meniscoplasty or meniscopexy is described and illustrated. The operation is regarded as an evolution of closed condylotomy described by Ward in 1961 and is indicated for those cases of severe and persistent temporomandibular joint pain and crepitus unresponsive to skilled conservative treatment over a reasonable time. The success of the procedure is probably the sequel of a partial denervation of the joint capsule associated with arthrotomy, the interruption of venous hypertension, the relocation of the mandibular condyle and enlargement of the joint space. The operation is also applicable to cases of active (and inactive) mandibular condylar hyperplasia wherein a condylar neck ostectomy and staple is used to ablate an active growth centre or correct a lesser degree of mandibular asymmetry.
The Brisbane Statistical Division Survey of Adult Dental Health 1984.
Authors: Powell R. N. , McEniery T. M. 
Published: May 2009

AbstractComparisons with surveys carried out in Australia and elsewhere indicate an improving dental health situation with a very much smaller proportion, particularly in younger age groups, losing all natural teeth, and with numbers of decayed, missing, and filled teeth reflecting the improvement already documented in schoolchildren. As with other recent studies, the proportion of subjects displaying generalized severe forms of periodontal disease was low. The single most important dental treatment need was the removal of calculus.
Ackerman's tumour (verrucous carcinoma) of the oral cavity: a clinico‐epidemiologic study of 426 cases
Authors: Rajendran R. , Varghese Ipe , Sugathan C. K. , MSc T. Vijayakumar 
Published: May 2009

AbstractFour hundred and twenty‐six cases of verrucous carcinoma of the oral cavity were detected jointly by the Department of Oral Pathology, Dental College and Department of Pathology, Medical College, Trivandrum, during the period from January 1975 to December 1984. They constituted 5.27 per cent of 7988 primary malignant neoplasms of the oral cavity detected during the period. There were 276 men and 150 women with an average age of 67.5 years. The maximum incidence was noted in the sixth decade of life. The highest incidence was observed in the buccal mucosa, followed by tongue, alveolus, and lips. These patients had no associated malignancies but leukoplakia was observed consistently in all cases. All had chewing and/or smoking habits. Most of the patients were treated surgically. Twenty‐six patients reporting back with recurrence were given radiotherapy and followed for a period of 30 months. Among the 26, 18 patients showed recurrence at the local site. Surgery seems to be the treatment of choice for verrucous carcinoma. The aetiopathogenesis of the tumour is discussed.
Bonding of a composite restorative material to etched glass ionomer cement*
Authors: Wexler G. , Beech D. R. 
Published: May 2009

AbstractThe tensile bond strengths of a composite restorative material to phosphoric acid etched restorative glass ionomer cement were examined as a function of cement brand, time after mixing at which etching was performed, thickness of film on enamel and dentine and extent of exposure to water during cement maturation.Optimum bond strengths were obtained with mature cements isolated from water during maturation. Bond strengths were similar to or greater than tensile strengths of cements and many currently available dentine bonding agents for composites. Bonding to etched cement occurs by micromechanical interlocking and the zone of bond failure in tension was in the surface layer of the cement.
Clinicopathological presentations of oral Kaposi's sarcoma in AIDS
Authors: Barrett Anthony P. , Bilous A. Michael , Buckley David J. , Kefford Richard F. , Packham Donald R. 
Published: May 2009

AbstractA range of clinicopathological presentations of oral Kaposi's sarcoma are described in two patients with acquired immunodeficiency syndrome. A predominantly ulcerative, non‐discoloured, early form of the neoplasm, which does not appear to have been reported previously, is described.
The restoration of endodontically treated teeth. Part 1. Treatment planning and restorative principles
Authors: Hunter Alan , Flood Andrew 
Published: May 2009

AbstractThis article reviews the basic principles surrounding the restoration of root filled teeth, and discusses the types of restoration considered suitable for this task. The importance of thorough treatment planning and attention to endodontics is emphasized, and guidelines are given as to the timing of follow‐up restorative treatment. The role of posts, pins, and other methods of achieving adequate core retention and tooth support are outlined through a review of the literature. The implications of the recent work ascribing a greater role to extra‐coronal restorations in maximizing tooth strength is also assessed, particularly as it relates to the fabrication of the substructure.
Resin bonded prostheses: clinical guidelines
Authors: Flood Andrew M. 
Published: May 2009

AbstractGuidelines for the successful use of resin bonded bridges are presented. The importance of sound case selection cannot be overemphasized. Other factors that influence the clinical success of resin bonded bridges include preparation design, choice of metal, surface preparation of metal, and the need to respect the sensitivity of the etched alloy surface of the Maryland bridge before and at the cementation stage.
Fusion of maxillary third and supernumerary fourth molars. Case report
Authors: Hou Guey‐Lin , Tsai Chi‐Cheng 
Published: May 2009

AbstractFusion of teeth is most commonly reported in the deciduous dentition, particularly in the anterior teeth. Recently, additional cases of fusion have also been reported in the mandibular molars of the permanent dentition, and are not considered uncommon. However, reports of the involvement of maxillary molars appear to be particularly rare in the literature. This case is another example of the quite rare phenomenon of fusion of maxillary third and supernumerary fourth molars.
Silicone‐induced foreign‐body reaction after temporomandibular joint arthroplasty. Case report
Authors: Acton Caroline , Hoffman Gary , McKenna Harry , Moloney Frank 
Published: May 2009

AbstractDacron‐reinforced Silastic sheets were removed from two patients who had previously undergone surgery for internal derangements of the temporomandibular joint. Excised tissue from around the joints was submitted for histological analysis, revealing a diagnosis of detritus synovitis. The significance of these findings with respect to the insertion of foreign material into the jaw joint is discussed in the light of recent research.
A laboratory study of the effect of thermocycling in saline and artificial saliva on two dentine bonding agents
Authors: Pokarier M. , Gage J. P. 
Published: May 2009

AbstractThermocycling of composite resins in saline and artificial saliva was carried out in order to determine the effect of these solutions on the bonding of Lumifor/Gluma and Valux/Scotchbond to dentine and enamel. Minimal Class V cavities were prepared in extracted human teeth and restored with light‐cured composite resins, following each manufacturer's instructions. The restored teeth were subjected to 500 cycles at temperatures ranging between 5°C and 45°C. One group was thermocycled in saline, the other in artificial saliva. The resultant marginal gaps were stained and evaluated microscopically. No difference was found between the respective composite resins. However, significantly more gaps were present in those restorations thermocycled in saline.
Microwave irradiation as a form of fixation for dental pulp
Authors: Monsour P. A. , Harbrow D. J. , Little G. J. 
Published: May 2009

AbstractThis study investigated developments in microwave energy fixation and the general applicability of microwave fixation to studies of dental pulp. Rat mandibles with incisors were dissected out and immersed in various solutions before and after exposure to microwave energy. Histological examination showed no combination with microwave fixation to be equal in quality to control tissues fixed in formalin. Inferior but satisfactory results could be achieved by immersion of tissues in formalin after microwave irradiation, a step thought to protect the microwave fixed tissue from subsequent damage caused by decalcification. Good fixation of tissues outside the pulp was achieved using microwave energy. Further investigation is required to perfect microwave fixation of pulpal tissue.
A clinical evaluation of two methods of caries prevention in newly‐erupted first permanent molars
Authors: Green Eleonore 
Published: May 2009

AbstractA two‐stage topical treatment regime, AgF followed by SnF2, was used as a caries preventive measure in newly‐erupted first permanent molars in a group of children. Another group of children, from similar geographic and socio‐economic backgrounds was treated by a one stage topical application of SnF2 only. The teeth treated were observed at six‐monthly intervals for a period of 18 months, and showed a significantly higher incidence of caries developing when treated with SnF2 only.
Tricalcium phosphate ceramic as immediate root implants for the maintenance of alveolar bone in partially edentulous mandibular jaws. A clinical study
Authors: Mathai Joseph K. , Chandra Suresh , Nair K. V. , Nambiar K. K. Srinivasan 
Published: May 2009

AbstractThis study was undertaken to probe the efficacy of tricalcium phosphate ceramic (TCP) as an immediate root implant in the maintenance of alveolar bone. Three patients had five TCP root implants placed in fresh extraction sockets with soft tissue closure. The control and implant areas were evaluated at the 20th and 78th week on the basis of radiographic and clinical measurements. Tricalcium phosphate ceramic root implants in extraction sockets produced a significant increase in height and width of alveolar bone compared with control sites. It is believed that this method is a more effective and efficient procedure to preserve alveolar bone for the retention of dentures than other methods.
Mechanisms of disc displacement in the temporomandibular joint
Authors: Gage J. P. 
Published: May 2009

AbstractThe sign of ‘clicking’ in the temporomandibular joint is not a normal phenomenon. It is, in fact, often the first indication of potential myofascial pain or temporomandibular joint pain dysfunction syndrome and as such should be detected early and diagnosed correctly. Clicking is a cardinal sign of altered function within the joint, the aetiology for which can only be diagnosed from a sound knowledge of anatomy and physiology. With this background it is possible to ascertain whether the cause is essentially biochemical, neuromuscular, or occlusal in nature or multifactorial components of all three categories. An attempt has been made to provide background knowledge in order that a correct diagnosis can be made.
Denture soft lining materials: clinical indications
Authors: Mack Peter John 
Published: May 2009

AbstractThe success or failure of a soft lining in a denture is dependent not only upon the physical properties of the material employed, but also on an understanding of the intended function of this group of products, and the physiological and biological properties of the resilient oral tissues upon which the denture rests.This paper identifies the clinical factors that must be reviewed in order to assess the need for and likely success of a denture soft lining material.
A photographic study of enamel defects among South Australian school children
Authors: Dooland M. B. , Wylie A. 
Published: May 2009

AbstractColour photographs were taken of the anterior teeth of 1757 consenting 8–9 year old primary school children in fluoridated and non‐fluoridated areas of South Australia. Children with a lifelong exposure to fluoridated water were significantly more likely to have blemished permanent incisor teeth than the children who had never resided in a fluoridated area. Children who resided in a non‐fluoridated area but had taken fluoride supplements at some stage in their first five years had a prevalence of enamel blemishes equivalent to those of children in fluoridated areas of the State.
A survey of the pattern of private general dental practice in Queensland
Authors: Spratley M. H. , Coyne L. N. 
Published: May 2009

AbstractAll non‐specialist ADA member private practitioners in Queensland were invited to participate in a survey to determine the number of the various types of permanent restorations placed in one week and the percentage breakdown of the time they devoted to the various areas of dentistry. Final year dentistry students at the University of Queensland were asked to estimate the projected breakdown of their time in future practice.Results showed that amalgam is still by far the most commonly used material followed by composite resin and glass ionomer cement and that restorative dentistry accounts for the bulk of the practitioners' time. Students' estimations of the work mix were in agreement with those of the practitioners.
The teaching of dento‐maxillo‐facial radiology in Australian dental schools*
Authors: Keur J. J. , Barrett A.P. , Bower R. C. , Lilienthal B. , Macdonald R. , Monsour P. A. , Waters B. 
Published: May 2009

AbstractThe skills necessary to successfully perform radiological procedures in general dental practice are described and should be used as criteria when developing an effective undergraduate curriculum and as determinants of the contents of continuing education programmes. The present status of undergraduate curricula, continuing education, and postgraduate programmes as well as the recognition of the specialized nature of dento‐maxillo‐facial radiology, are discussed and recommendations for future developments are made.
The relationship between microbiological assays and the clinical signs of periodontal disease
Authors: Newcomb G. M. , Nixon K. C. 
Published: May 2009

AbstractNinety‐five patients with periodontal disease each had subgingival plaque samples collected from four sites (one from each quadrant) in their mouths. The relative proportions of spirochaetes, motile rods and cocci were determined using dark field microscopy and the proportion of anaerobic to aerobic microorganisms calculated after culture. In addition, clinical recordings were made.The only significant correlations observed were between probing depth or attachment loss and the proportion of cocci in the plaque (negative association), probing depth or attachment loss and sites which were suppurating or displayed a radiolucent interdental crest (positive association), and the percentage of cocci and sites with a radiolucent interdental crest (negative association). Partial correlation analysis controlling for probing depth or attachment loss showed that a significant inverse association between the percentages of cocci and the presence of a radiolucent interdental crest remained. No significant associations were observed between clinical signs such as bleeding on probing or suppuration and the microbiological assays. Overall there was a poor correlation between many of the signs thought by some to indicate periodontal disease activity.