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A new method for stabilization of periodontally involved teeth.

An approach is presented for the construction of an extracoronal temporary splint that meets the demands of stabilization in the presence of a compromised attachment apparatus. It is completely reversible and esthetically acceptable. It also combines the versatility of two often used materials--orthodontic grid material (for bracket placement) and self-polymerizing resins and composites, giving the combined effect of strength, stability and esthetics.

Acid Etching, Dental↗

[The corrective phase of periodontal therapy].

After pointing to the hygienizing phase which must in any case precede, the author deals with the medicinal local and general treatment, the occlusal function diagnosis, the function analysis, and the fundamentals of the grinding therapy. Furthermore, the temporary splinting, the treatment of secondary malpositions and problems as well as methods of periodontal surgery are mentioned.

Dental Occlusion, Balanced↗

Reproducibility of pocket depth and attachment level measurements when using a flexible splint.

Pocket depth, attachment level and bone level assessments were carried out using flexible splints to produce readily identifiable reference points and to standardize the probing spot and the direction of probe insertion. The pocket depth and attachment level measurements were carried out twice at intervals of 3 weeks, both before and 3 months after periodontal treatment. The level of alveolar bone was measured by transgingival probing ("sounding") and again following elevation of a mucoperiosteal flap. The measurements were made with a periodontal probe to the nearest higher millimeter. Complete agreement was found between the first and second measurements of pocket depths and attachment level for approximately 60% of the examined surfaces, both before and after periodontal treatment. A deviation of 1 mm or less was found for approximately 95% of the surfaces, and the difference between the first and second measurement never exceeded 3 mm. When transgingival probing measurements were compared to the measurements of the periodontal bone level assessed after elevation of a mucoperiosteal flap, complete agreement was found for 60% of the surfaces, and a deviation of 1 mm or less was found for 90% of the surfaces. No discrepancy exceeding 3 mm was observed. The results of this study indicate that readily identifiable reference points can be produced by flexible splints in assessments of pocket depth, attachment level and bone level alterations in studies on the effect of periodontal treatment.

Adult↗

Morphologic studies on dental plaque formation.

The present summary and the following papers (I--VII) are submitted in partial fulfillment of the requirements for the degree of Doctor Odontologiae at the University of Bergen. 1: Growth of dental plaque on hydroxyapatite splints. A method of studying early plaque morphology. J. Periodontal Res. 1974, 9, 135--146. II: Pellicle formation on hydroxyapatite splints attached to the human dentition: Morphologic confirmation of the concept of adsorption. Arch. Oral Biol. 1975, 20, 739-742. III: Scanning and transmission electron microscope study of pellicle morphogenesis. Scand. J. Dent. Res. 1977, 85, 217-231. IV: Early dental plaque morphogenesis. A scanning electron microscope study using the hydorxyapatite splint model and a low-sucrose diet. J. Periodontal Res. 1977, 12, 73-89. V: Ultrastructural study of early dental plaque formation. J. Periodontal Res. 1978, 13, 391-409. VI: Dental plaque morphology as revealed by direct observation and by replicating techniques. Acta Odontol. Scand. 1978, 36, 279-288 Co-author: F. Gusberti. VII: Replica study of plaque formation on human tooth surfaces. Acta Odontol. Scand. 1979, 37, 65-72. Co-author: F. Gusberti. These papers are referred to as I-VII in the present summary. Other papers are referred to in conventional manner.

Dental Impression Technique↗

[Reaction of the periodontium to the wire ligature splint (Stout-Obwegeser)].

The direct traumatising effect of the Stout-Obwegeser wire ligature splint on the marginal periodontium is minimal and need not be considered. The increase in depth of pockets, in the index of sulcus bleeding and in tooth mobility is due to poor oral hygiene. In 16 patients (orthodontic operation and jaw fractures) periodontal measurements were obtained on 369 teeth in 30 jaws before application of the splint, 1 and 6 weeks later and as 6 weeks after removal of the splint. All gingival indices determined were at first raised. The last measurements however showed, better values than those at the beginning of treatment. Inflammatory changes regressed near all teeth whether they were included in a ligature or not. This appears to prove that oral hygiene alone is decisive. The question whether the "curettage" effect of splint application has a therapeutic action is left open.

Dental Hygienists↗

The reaction of the periodontium to different types of splints. (I). Clinical aspects.

To study the influence of splints on the periodontia over a period of time, Obwegeser and Merkx splints were applied on beagles. Clinical evaluation using different periodontal parameters was carried out before, and 48 h, 3 weeks and 6 weeks after splinting. It was shown that both splints act as plaque-retentive devices and provoke gingival inflammation. A statistically significant difference between both splints could, however, only be demonstrated for the plaque index.

Animals↗

Management of periodontal disease in patients with occlusal abnormalities.

1. Periodontitis is a bacterial, plaque-induced disease. 2. Periodontal tissues may be affected simultaneously by inflammatory changes and traumatic changes. 3. Unless a traumatic injury is diagnosed, the occlusion should not be altered as part of the periodontal treatment. There is no place for prophylactic treatment of the occlusion. 4. Occlusal adjustment, occlusal bite splints, orthodontic treatment, and restorative dentistry are all means to treat the occlusion. 5. Occlusal treatment is generally performed after control of the inflammatory periodontal changes by root preparation and oral hygiene. 6. Restorative procedures should be carried out at least one to two months after completion of periodontal surgery. 7. The aim of occlusal therapy should be the establishment and maintenance of stable occlusal relationships and the restoration of an optimal occlusal function.

Bruxism↗

[Splinting--a review of the literature].

Early evidence for the use of splints can be seen in ancient civilizations, but the concept of Splinting teeth to support and immobilize teeth, by joining several teeth together continues to be a topic of controversy. Splints can be classified based on their purpose and duration of use, the way of fabrication, and the location of the splinted teeth in the jaw. The biomechanical mechanism of splint is related to the mechanism of tooth mobility. The indications for splint usage in the healthy and diseased periodontium are variable, among them are: prevention of mobility after acute trauma, for occlusal therapy, to allow function, to allow periodontal repair, in case of occlusal trauma, to prevent teeth drifting after orthodontic treatment or when a tooth is missing. Due to the many disadvantages splints have, splinting should be used cautiously, specially in splinting teeth and implants.

Dental Occlusion, Traumatic↗