bluuebunny/crossref_metadata_2025_split huggingface dataset:
Colour stability of composite resins: A clinical comparison
Authors: Tyas Martin J. 
Published: May 2009

Abstract— Ninety three Class III cavities were prepared in 66 patients, and restored with one of three resin‐based restorative materials; a hybrid self‐cure material, a microfine self‐cure material, or a microfine light‐cure material. Standard sets of clinical colour transparencies were used to evaluate colour match with the surrounding tooth and marginal discoloration over five years.After five years, all materials had become slightly darker, the microfine self‐cure material significantly more so than the light‐cure material. There was no significant development of marginal discoloration.
The tunnel restoration – nine years of clinical experience using capsulated glass ionomer cements. Case report
Authors: Knight Geoffrey M. 
Published: May 2009

AbstractThe clinical potential of the tunnel restoration is restrained by perceived difficulties of access to proximal caries and lack of long‐term clinical data.This paper describes a technique that affords proximal access similar to that of a standard Class II cavity preparation and provides an evaluation of a technique, using capsulated glass ionomer cements. It is supported by more than nine years of clinical experience that confirms the viability of this procedure as an alternative to conventional Class II cavity restorations for initial proximal lesions.
Microsurgical repair of nerves injured during third molar surgery*
Authors: Jones Robert H. B. 
Published: May 2009

AbstractThe inferior dental and lingual nerves are in close proximity to the mandibular third molar. In approximately 5 per cent of cases of the surgical removal of this tooth one or other of these nerves may be injured. In most cases the injury is reversible but in 1 per cent a distressing dysaesthesia may occur. The diagnosis of the sensory deficit is made by repeated sensory testing. If there is no improvement by six to nine months then complete spontaneous recovery will not occur. These irreversible nerve injuries can be successfully treated microsurgically.
Facial palsy in the dental surgery. Case report and review
Authors: Miles Peter G. 
Published: May 2009

AbstractFacial palsy is a relatively uncommon condition with a variety of causes including dental intervention. A brief history of two cases of facial palsy with dental implications is presented. The aetiology of facial palsy is reviewed and the management of such cases is discussed. The option of immediate treatment of Bell's palsy with prednisone is stressed.
The effect of interface adhesion, water immersion and anatomical notches on the mechanical properties of denture base resins reinforced with continuous high performance polyethylene fibres
Authors: Ladizesky N. H. , Chow T. W. 
Published: May 2009

AbstractPrevious work1 has presented a study of the mechanical properties of denture base resins reinforced with a new type of high performance fibre. It is now shown that the substantial improvements demonstrated in those composites remain largely unaffected by a watery environment, anatomical notches, moulding pressure and other factors of denture construction.The understanding of the reinforced resins is here complemented with a detailed study of the interface strength, taking into account the various couplings occurring within the system.
Survey of continuing dental education attendance in Western Australia
Authors: Tan Albert E. S. 
Published: May 2009

AbstractA survey of attendance at continuing dental education courses convened by the University Postgraduate Dental Education Committee, University of Western Australia, and the Australian Dental Association. Western Australian Branch was collated for one calendar year. Attendances were compared relating to the number of dentists registered in the State, ADA membership, metropolitan versus rural dentists and the number of courses attended. The mandatory and voluntary options for continuing dental education are discussed in the light of the survey findings.
Parallel bonded cast attachments for removable partial dentures
Authors: Murray Michael D. 
Published: May 2009

AbstractThe original design of a semi‐precision extra‐coronal attachment for partial dentures is illustrated, and its fabrication in a cast non‐precious bondable alloy is described. A step‐by‐step method is also described of bonding multiple attachments in parallel for the retention and support of removable partial dentures. Clinical cases are illustrated. The results of trials indicate that the method is clinically viable and, in selected cases, appears to offer distinct advantages over existing retention systems.
One‐year clinical performance of PMDM‐based dentine bonding agents
Authors: Tyas Martin J. 
Published: May 2009

AbstractTwo PMDM‐based dentine bonding agents and a microfilled composite were used to restore a total of forty non‐undercut caries‐free cervical abrasion lesions without enamel etching. Restorations were evaluated over one year and the loss rate calculated using a life table analysis. Marginal staining was assessed from colour photographs on a continuous linear rating scale. After one year, 5 per cent of Tenure bonded restorations were lost compared with 52 per cent of Mirage bonded restorations. Slight marginal staining was evident around Tenure bonded restorations after one year.
Binder's syndrome due to prenatal vitamin K deficiency: A theory of pathogenesis
Authors: Howe Andrew M. , Webster William S. , Lipson Anthony H. , Halliday Jane L. , Sheffield Leslie J. 
Published: May 2009

AbstractThere is evidence that vitamin K‐deficiency during human pregnancy can be caused by the therapeutic use of warfarin or phenytoin. The pregnancy histories of three cases of Binder's syndrome are reported. One was associated with warfarin exposure, one with phenytoin exposure and one with alcohol abuse. It is proposed that Binder's syndrome can be caused by prenatal exposure to agents that cause vitamin K‐deficiency.Sprague‐Dawley rats were treated from postnatal day 1 to 12 weeks with daily doses of warfarin (100 mg/kg) and concurrent vitamin K1 (10 mg/kg). This regimen creates a net extra‐hepatic vitamin K‐deficiency. The treated rats developed with a distinct facial appearance characterized by a markedly reduced snout. Histological examination showed that the normally non‐calcified septal cartilage was extensively calcified. It is proposed that normal growth of the septal cartilage is necessary for the development of the profile of the nose and midface and that normal growth will only take place while the septal cartilage is uncalcified.
Terminology of facial morphology in the vertical dimension
Authors: Collett A. R. , West V. C. 
Published: May 2009

AbstractConsideration of facial type plays an important role in the formulation of an orthodontic treatment plan and prognosis of treatment. Of particular importance is the vertical relationship, that is, whether an individual is long‐faced (dolichofacial), or short‐faced (brachyfacial). The vertical facial type provides a clue regarding the growth direction of the facial complex, and should be used with an anteroposterior classification to describe a patient's face. The potential for confusion in communicating vertical facial types exists due to the nature of the terminology in use. For example, the term dolichoprosopic as used in the Bimler analysis has an opposite meaning to the term dolichofacial. It would seem prudent that if such terminology is to be employed there should be some attempt at standardization, and at least an appreciation of the derivations of the terms, and their differences.
Study of gypsum‐bonded casting investments. Part 1
Authors: Mori Toshiko 
Published: May 2009

AbstractIn order to develop analytical methods for identifying plaster or dental stone (calcium sulphate hemihydrate) and quantifying its content in gypsum‐bonded dental casting investments, six dental gypsum products were studied by means of simultaneous differential thermal analysis‐thermogravimetry (DTA‐TG). Under the same analytical conditions employed in the present study, a phase change in calcium sulphate anhydrite (III‐CaSO4 to ll‐CaSO4) was shown to occur at about 220°C for four dental stones manufactured by various wet methods and at about 350°C for two plasters manufactured by dry methods. This confirms the general view that the two types of calcium sulphate hemihydrate manufactured by dry or wet method could be identified by the DTA method. A reasonable estimate of chemically bound water could be made from the TG results at 300°C. The present DTA‐TG method can be used to identify the plaster or dental stone and calculate its content in gypsum‐bonded casting investments.
Clinical evaluation of three amalgam alloys
Authors: Tyas Martin J. , Ewers Graeme J. 
Published: May 2009

AbstractA total of 117 high‐copper amalgams of three types (platinum‐modified, palladium‐modified and dispersed phase) was placed by two operators in 59 patients. Restorations were assessed for marginal fracture, tarnish, corrosion, and tooth staining on continuous linear photographic rating scales. After one year, the platinum‐ and palladium‐modified alloys showed a significant amount of tarnish, and all three alloys had statistically significant marginal fracture. The only significant difference between alloys at one year was the greater tarnish of the platinum‐modified alloy. There was no association between static creep and marginal fracture.
A microscopic examination of bond surfaces in failed electrolytically etched cast metal fixed prostheses
Authors: Berekally Thomas L. , Makinson Owen F. , Pietrobon Raoul A. 
Published: May 2009

AbstractThe aims of this investigation were to examine the patterns of resin cement failure between debonded electrolytically etched (Maryland) bridge retainers and their respective abutment teeth and to determine if the clinical assessment of bond failure corresponded to the types of failure observed in the scanning electron microscope. Twenty‐eight (18 anterior and 10 posterior), debonded bridges were examined. The results indicated that the classification of bond failures at the clinical level did not correspond to the SEM assessments of failure. It appeared from the specimens examined that loss of retention occurred as a result of resin failure within the cement layer close to the enamel‐resin interface. Only one metal retainer specimen showed a small area of resin‐metal failure. There appeared to be no differences in the patterns of resin failure between anterior and posterior bridges. The observations also indicated that the resin cements used for bridge cementation adhered well to electrolytically etched retainer surfaces.
Hereditary gingival fibromatosis with a recessive mode of inheritance. Case reports
Authors: Singer Steven L. , Goldblatt Jack , Hallam L. A. , Winters John C. 
Published: May 2009

AbstractHereditary gingival fibromatosis is characterized by varying degrees of attached gingival hyperplasia and may in rare cases present as a feature of a generalized syndrome. It is usually inherited as an autosomal dominant condition though recessive forms are described. The dental and genetic features of an affected brother and sister with a probably unique autosomal recessive hereditary fibromatosis syndrome are presented.
Multiple supernumerary premolars: their occurrence in three patients
Authors: King Nigel M. , Lee Albert M. P. , Wan Peter K. C. 
Published: May 2009

AbstractThe occurrence of supernumerary teeth in the premolar regions of three patients is reported. Of the 20 supernumerary teeth identified, 16 had crowns which resembled premolars and may thus be considered to be supplemental premolars, while the remainder were conical in shape. The delayed development of the supernumerary teeth in the premolar region supports the hypothesis that these teeth were part of a post‐permanent dentition. The eruption of six of the eight supernumerary teeth in the 30‐year‐old patient demonstrated that given time some of these teeth can erupt into the dental arch.
Marginal seal of cervical tooth‐coloured restorations. A laboratory investigation of placement techniques
Authors: Martin F. Elizabeth , O'Rourke Meredith 
Published: May 2009

AbstractIncremental placement of composite resin has been suggested as a means of overcoming the contraction that occurs during polymerization of the composite material and as a consequence should allow an improved gingival dentine seal. Numerous incremental placement techniques for composite resin restorations have been documented in the literature. This study examined four different methods of placing Silux in class V cavities, located in the region of the cemento‐enamel junction, and lined with Vitrabond.None of the placement methods used completely sealed either the enamel or dentine margins. Of the four techniques employed, the one which involved incremental placement of the gingival component first showed the least amount of leakage at the dentine margin. This result, however, was only significantly different from that of the bulk placement method.In the majority of cases where leakage did occur at the dentine margin, it progressed no further than the Vitrabond lining. It appeared that the high initial adherence to dentine of the light cured glass‐ionomer cement prevented deeper penetration of the dye.
Xerostomia: the missing diagnosis?
Authors: Crockett David N. 
Published: May 2009

AbstractXerostomia is a distressing condition which may be associated with a number of specific diseases, iatro genically induced following the administration of drugs or radiotherapy, or the result of inflammatory processes affecting salivary gland tissue. In this article epidemiological background is briefly reviewed and aetiological conditions associated with xerostomic states are summarized. The oral sequelae of xerostomia are discussed and approaches to diagnosis demonstrated. Treatment of xerostomia is basically supportive and the main elements are presented.
A proposal for voluntary continuing dental education accreditation
Authors: Tan Albert E. S. , McKerracher Peter W. 
Published: May 2009

AbstractThe paper proposes a simple method of voluntary continuing dental education accreditation for dentists. It is suggested that the Australian Dental Association should adopt a positive role in promoting a method of accreditation for its members. The reasons for such a scheme are discussed in the light of the current scrutiny directed at the professions on this important issue.
Diflunisal — a long‐acting non‐steroidal anti‐inflammatory drug.
Authors: Lawton G. M. , Chapman P. J. 
Published: May 2009

AbstractDiflunisal is frequently used for management of postoperative dental pain as it has some advantages over other commonly used non‐steroidal antiinflammatory drugs including improved analgesia, a prolonged duration of action lasting up to 12 hours, and a low incidence of side effects. The aim of this paper is to review the relevant pharmacologic actions of the drug including its mechanism of action in suppressing the inflammatory response, and indications for its use in dentistry. Diflunisal can be safely recommended for the dental patient following oral surgery and exodontia, periodontal surgery and endodontic surgery.
Periodical gingival bleeding as a presenting symptom of periodontitis due to underlying cyclic neutropenia. Case report
Authors: Yamahk Nermin , Yavuzyilmaz Ezel , Çaǧlayan Feriha , Tezcan İlhan , Berkel İzzet , Ersoy Fügen , Sanal Özden 
Published: May 2009

AbstractA 13‐year‐old boy presenting with spontaneous and periodical gingival bleeding accompanied by fever was thoroughly examined in order to determine the underlying aetiology of the gingival bleeding. Following repeated blood tests, the patient was diagnosed as having cyclic neutropenia. Thus, it was suggested, gingival bleeding, especially when spontaneous and periodical, should be carefully investigated to eliminate the possibility of cyclic neutropenia.
Hypochlorite injury to the lip following injection via a labial perforation. Case report
Authors: Linn J. L. , Messer H. H. 
Published: May 2009

AbstractThis report documents ulceration of the oral aspect of the lip, with facial swelling, following injection of Milton's solution into the lip through a labial perforation of tooth 13. After palliative therapy the ulceration healed within six weeks, and paraesthesia within three months.
Study of gypsum‐bonded casting investments. Part 2
Authors: McAloon Janis , Mori Toshiko 
Published: May 2009

AbstractThe simultaneous differential thermal analysis — thermogravimetry (DTA‐TG) method used in Part 1 of this two‐part study was extended to analyse two gypsum‐bonded dental casting investments, Kerr Cristobalite Inlay and GC Cristobalite Micro. Both investments had a similar cristobalite content of about 70 per cent. The remaining 30 per cent was dental stone in GCM, and a mixture of plaster and dental stone in KCI. Inclusion of plaster in KCI appeared responsible for the greater amount of water required for mixing this investment. The DTA‐TG method used in the present study can be applied to identify the type and amount of hemi‐hydrate, and the type of silica, in currently available gypsum‐bonded investments.
Failure of an intra‐oral wound to heal. Case report
Authors: Csillag G. D. 
Published: May 2009

AbstractFailure to treat the soft tissue component of dento‐alveolar wounds may complicate wound healing mechanisms, retarding the rate of healing and increasing the risk of infection. A case is presented of a five‐year‐old with an intra‐oral wound which, left untreated for eleven days, failed to resolve.
Some problems of dental treatment. Part 1. Patient anxiety: Some correlates and sex differences
Authors: Smyth John S. 
Published: May 2009

AbstractAn analysis of questionnaire data obtained from 110 adult patients attending the Dental Department of the Lower Hutt Hospital and four private dental practices in Lower Hutt and Wellington, New Zealand indicates that patient treatment anxiety is more severe in women than men and that it is correlated with patients' descriptions of dental treatment. Altogether, survey findings indicate that treatment anxiety has adverse effects and that, with few exceptions, it results directly or indirectly from unpleasant experiences during dental treatment. Two of the most common of such experiences are evidently pain arising from the stimulation of sensitive tissue and oral injections. The eradication of treatment anxiety is therefore heavily dependent on the unobtrusive induction of profound analgesia prior to painful procedures.
Cost‐conservative dentistry: Appropriate dentistry at lower cost
Authors: Smith Ian R. , Brownlea Arthur A. 
Published: May 2009

AbstractDental practitioners in both private and public dentistry are faced with patients who for reasons of public or private finance are not able to be treated with the most sophisticated available dentistry. A concept of appropriate dentistry is provided whereby, with reference to available literature, it is shown that cost‐conservative treatment can be provided that is likely to be satisfactory to both the client and the practitioner.
Orthodontic treatment needs in Westmead Hospital Dental Clinical School
Authors: Howell Susan , Morel Geoffrey 
Published: May 2009

AbstractOne hundred and fifty‐four adolescents, 76 female and 78 male consented to take part in this survey. The two authors examined and assessed them for dental aesthetics, malocclusion related features and TMJ related signs. The patients were also questioned about their opinion of dental aesthetics, their interest in having orthodontic treatment and their TMJ symptoms. Only 63 per cent of the adolescents who were considered suitable for orthodontic treatment expressed an interest in wanting treatment. Twenty‐seven per cent of patients had signs and/or symptoms of TMJ disturbance. No association was found between individual malocclusion problems and TMJ signs and symptoms. The authors considered 56.5 per cent of the total group for orthodontic treatment, the majority for aesthetic reasons, and placed them into high, medium and low priority groups. Fixed appliance therapy for both arches was the recommended type of treatment for most patients.
Relationship between CPITN and oral health behaviour in Japanese adults
Authors: Kawamura M. , Sasahara H. , Kawabata K. , Iwamoto Y. , Konishi K. , Wright F.A.C. 
Published: May 2009

AbstractMany studies on toothbrushing have concentrated on clinically diagnosing plaque and measuring periodontal status as indicators of oral health behaviour. From a behavioural point of view, however, the more important objective is the health behaviour itself. To investigate the relationship of oral health behaviour to periodontal status, 517 urban employees in Japan (249 men and 268 women aged 20–59 years) responded to a 20‐item dental health behaviour questionnaire, entitled the HU‐DBI, and had their periodontal conditions examined using the CPITN. Only 1 per cent were found with a healthy periodontium (Code 0), and 9 per cent had bleeding on probing (Code 1). Calculus (Code 2) was the most prevalent condition with 51 per cent of subjects having this code as the worst condition, followed by shallow pockets (Code 3) in 30 per cent, and deep pockets (Code 4) in 9 per cent of the sample. The mean HU‐DBI score was 4.2 (out of 12). Females had somewhat higher scores than males (4.4 vs. 4.0, p<0.05). CPITN had a negative relationship with the HU‐DBI (r=‐0.26, p<0.001), and a positive relationship with age (r = 0.40, p<0.001). Similar relationships were observed in each gender. These data demonstrate the relationship of age with periodontal status, and periodontal status with oral health behaviour. A two‐dimensional matrix of HU‐DBI score by CPITN may provide a simple and effective means of identifying low and high risk individuals.
The vascular response in chronic periodontitis
Authors: Zoellner H. , Hunter N. 
Published: May 2009

AbstractThe role of vascular endothelial cells (EC) in periodontitis was investigated in a series of histological studies. Expansion of the vasculature was found to occur with development of gingivitis and periodontitis. This was thought to contribute to the characteristic tissue degradation in the developing disease. Vascular expansion could also play a role in the formation of a previously unreported perivascular hyaline material (PHyM). Polymorphonuclear leukocytes (PMN) are known to be protective in periodontitis, and the location, incidence and extent of PHyM suggested a role for PHyM in periodontitis by inhibiting PMN emigration. PMN emigration was found to occur from specialized high EC (HEC) lined post capillary venules. This was unexpected, as such vessels have previously been found to exchange lymphocytes almost exclusively. Detailed histochemical, ultrastructural and biosynthetic studies of these specialized blood vessels led to the suggestion that HEC may be specially adapted for the synthesis of cytokines in periodontitis. A negative association between expression of the membrane bound ectoenzyme, alkaline phosphatase, and HEC suggested a role for this enzyme in leukocyte emigration. These observations compel re‐evaluation of the role of EC in chronic inflammation, and in periodontitis in particular. The direction of current and future work is discussed.
The glucosyltransferases of Streptococcus salivarius
Authors: Jacques Nicholas A. 
Published: May 2009

AbstractThis review covers some of the more recent developments in the understanding of the different glucosyltransferases (GTFs) secreted by oral streptococci, particularly those produced by Streptococcus salivarius — a species that has been intensively studied at the Institute of Dental Research in Sydney.