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PubMed2004

[Orthodontic treatment needs and indications assessed with IONT].

The aim of this work was to determine the usefulness of the Index of Orthodontic Treatment Need (IOTN) in epidemiological studies undertaken to assess orthodontic treatment need of a given population, as well as in the process of defining indications to orthodontic treatment in individual cases with regard to objective treatment need and expressed demand for treatment. The correlation of the Aesthetic Component of IOTN (AC degree) with demand for treatment, usefulness of IOTN for screening studies, necessary modifications to make IOTN more acceptable to Polish orthodontists, and value of IOTN as a diagnostic and measuring tool for the assessment of orthodontic treatment need were addressed. The correlation between AC and demand for treatment, as well as the usefulness of IOTN in epidemiological studies were investigated with questionnaires and clinical examination using both components of IOTN (Figs. 1, 2, 3). The study group consisted of 264 schoolchildren aged 12 years. The results show that poor dental aesthetics is the main motivating factor to undertake orthodontic treatment (Tab. 1) and that demand for orthodontic treatment exceeds treatment need determined by IOTN (Tab. 2, 3). A regular distribution of AC degrees relative to the demand for treatment was obtained (Fig. 4) revealing the necessity to modify treatment need categories of this component in order to identify individuals with significant subjective treatment need. The modified aesthetic component would comprise the following treatment need categories: Grades (photographs) 1-2--"no demand for treatment"; 3-4--"borderline demand for treatment"; 5-10--"great demand for treatment". Excellent reproducibility of the Index (high values according to Kappa statistics), its universality, usefulness for various purposes, and simplicity in practice make the Index valuable for screening studies and assessment of treatment need in a given population. In order to test the reliability of the Dental Health Component of IOTN (the degree of conformity of this component with treatment tendencies among orthodontists), DHC criteria and subjective evaluation of treatment need were compared. This part of the study was carried out in a group of six orthodontists. 50 pairs of plaster casts covering a wide range of occlusal anomalies were analyzed. The subjective need for orthodontic treatment was stated for each case taking into account treatment priority and occlusal features determining treatment need. The results reveal a moderate conformity of DHC criteria with the orthodontist's opinion (Tab. 4 A, B) and a tendency among orthodontists to qualify for treatment also cases without treatment need according to IOTN recommendations. The discrepancy between the orthodontist's assessment of treatment need and DHC criteria applies mainly to cases with reverse overjet, front open bite, front or total crossbite and crowding in buccal segments of dental arches (Tab. 4 A, B). Matching the dental health component with opinions of Polish orthodontists requires shifting of some criteria from the moderate treatment need to the great treatment need category (Fig. 5).

Age Factors↗
PubMed2006

Achieving form and function for Class II restorations using aesthetic resin stratification.

It can be challenging to reproduce the appropriate three-dimensional contours when the proximal walls of posterior teeth have been lost. This presentation will demonstrate the fundamentals required to achieve predictable success when placing direct posterior composites in these Class II sites. The keys to successful placement of resin materials (eg, adhesive technique, integration of form and function, color match) are covered herein. When placing a direct resin restoration, clinicians must have a sound understanding of tooth morphology, combined with the proper techniques, outlined in the clinical case, in order to obtain an acceptable aesthetic restoration.

Color↗
PubMed2006

New trends in prosthetic dentistry.

Prosthetic dentistry is one of the fundamental pillars of dentistry. Even though it is highly specialized in replacement of missing teeth and adjacent soft and hard oral tissues, the cooperation with other branches of dentistry is very important. It usually provides final stages of rehabilitation of the whole maxillofacial system. The loss of several teeth doesn't have to be an immediate threat to the function of the whole dentition, but it can initiate serious problems related to the whole orofacial region, psychics and the wellbeing of the patient. From this point of view prosthetic dentistry is a valuable tool with high therapeutical and preventive character. Modern prosthetics offers classical solutions with simple fixed and removable dentures, and advanced solutions with dental implants support for rehabilitation of dental defects. Final quality and prognosis of prosthetic treatment depends both on materials and technologies used and on the patients' motivation and dental care. Superior esthetical demands and biocompatibility issues drive dental manufacturers to introduce new materials with defined properties. Nowadays the most sophisticated systems are based on ceramics, dental implants and CAD/CAM technologies.

Dental Prosthesis↗
PubMed1990

Staining of light-cured aesthetic resin restorative materials by different staining media: an in vitro study.

Aesthetic restorative resins have been characterised by clinical discolouration. New light-cured anterior and posterior resins are currently available to the profession and this study investigated the in vitro colour stability at 24 hours and 7 days of ten such resins in three different staining media. Disc specimens were prepared and stained at 37 degrees C and 100 per cent R. H. and then evaluated by double blind visual assessment. All the materials undergo some staining in coffee and red wine. Coca-Cola, however, does not cause any staining of the restorative resins. Adaptic II is the most stain-resistant material and most of the staining occurs within the first 24 hours after immersion in the staining media.

Bisphenol A-Glycidyl Methacrylate↗
PubMedDate not supplied

The try-in visit for restorative dentistry.

The try-in visit for restorative dentistry is one of many important steps toward excellence. Attention to detail in all parts of this visit outlined above will lead to fewer remakes and more satisfied patients and dentists.

Dental Occlusion↗
PubMed2006

Status of lingual orthodontics.

The lingual appliance was developed simultaneously in 2 countries during the 1970s. Although not fully recognized by the orthodontic mainstream, lingual treatment has steadily expanded, with increased numbers of lingual orthodontists and patients. This article reviews the development, advantages and disadvantages, bonding techniques, biomechanics, and treatment procedures of the lingual appliance. Currently, there are few contraindications for treatment with the lingual appliance. Cephalometric measurements do not reveal statistically significant differences in treatment results between labial and lingual treatment; however, more clinical trial studies are needed to compare the efficiency and outcome of lingual appliances with those of labial appliances.

Biomechanical Phenomena↗
PubMed1991

[Etched porcelain].

Porcelain is an outstanding material for tooth restoration with splendid cosmetic results. With the introduction of porcelain it is possible to restore teeth with minimal loss of healthy tissue. This results in strong and beautiful restorations.

Acid Etching, Dental↗