Fogorvosi szemle, 2006 (99. évfolyam, 1-6. szám)

2006-12-01 / 6. szám

253

FOGORVOSI SZEMLE ■ 99. évf. 6. sz. 2006.

References:

Slavin KV: Eagle syndrome: entrapment of the glossopharyngeal nerve? Case report and review of the literature. [Case Reports. Journal Article] Journal of Neurosurgery 2002; 97(1): 216-218.

Philipp K, Barnes EL, Carrau RL: Eagle syndrome produced by a granular cell tumor. [Case Reports. Journal Article] Archives of Otolaryngology - Head & Neck Surgery 2001; 127(12): 1499-1501.

Thot B, Revel S, Mohandas R, Rao AV, Kumar A: Eagle’ syndrome. Anatomy of the styloid process. [Journal Article] Indian Journal of Dental Research 2000; 11(2): 65-70.

Buono U, Mangone GM, Michelotti A, Longo F, Califano L: Surgical approach to the stylohyoid process in Eagle’s syndrome. [Journal: Article] Journal of Oral & Maxillofacial Surgery 2005; 63(5): 714-716.

Quereshy FA, Gold ES, Arnold J, Powers MP: Eagle’s syndrome in an 11-year-old patient. [Journal: Article] Journal of Oral & Maxillofacial Surgery 2001; 59(1): 94-97.

Lee S, Hillel A: Three-Dimensional Computed Tomography Imaging of Eagle’s Syndrome. [Journal: Article] American Journal of Otolaryngology - Head & Neck Medicine & Surgery 2004; 25(2): 109.

VITALMICROSCOPOIC STUDIES OF ADHESIVES

NYÁRASDY, I.1, KISPÉLYI, B.2 FEJÉRDY, L.2 IVÁNYI, I.1 ROSIVALL, L.3

department of Conservative Dentistry, Faculty of Dentistry, Semmelweis University, Budapest, Hungary; department of Prosthodontics, Faculty of Dentistry, Semmelweis University; department of Pathophysiology, Faculty of Medicine, Semmelweis University

Introduction: The continuously improving composite filling materials can form almost perfect fillings in both anatomical and functional terms. However, even today’s best filling materials show a polymerisation shrinkage of about 1.5 % v/v, which will lead to a gap at the filling edge, and, in turn, to secondary caries and corresponding complications.

Since manufacturing companies have not managed to solve this problem, dentists have to compensate for the polymerisation shrinkage, i.e. attempt to eliminate the marginal leakage by using the so-called ‘adhesive technique’. This consists of applying adhesive materials directly on the cavity wall.

Aims: The goal of the study was to examine - with vital-microscopic technology - the effects of one characteristic member of the ‘total etch’, the ‘etch & rinse’ and the ‘self etch’ adhesive group on the diameter and micro-circulation of pulpal vessels of rat teeth. Materials and method: 10 animals were studied in

each group. In the first test group 36% phosphoric acid for 15 and 60 sec, in the second group Non-Rinsing Conditioner, in the third test group Scothbond Multipurpose Dental Adhesive System with and without etching, in the fourth group Prime&Bond 2.1, in the fifth test group Prompt L-Pop, and in the last group Xenolll were applied on the 20-40pm thin dentine layer of the left lower incisor of Sprague-Dawley male rats (376 + 92 g. S.E.). The application of saline served as untreated control.

Results: Phosphoric acid and self-etching Non-Rinsing Conditioner of 36%, applied for 15 sec, caused no irreversible changes. However, phosphoric acid of 36%, applied for 60 sec, resulted in serious irreversible changes. None of total-etch group members caused irreversible changes, while the ‘strong self-etch’ adhesive showed more serious consequences. The acidically less aggressive member of the other subclass - causing reversible changes - is less toxic. When using adhesives containing acetone as solvent, the pulpdentine complex compensated for the toxic effects of the acetone.

Discussion: Via dentine tubules cut through at preparation, these materials may come into direct contact with the pulp tissue, i.e. adhesives must always be biologically acceptable.

These materials are characterised by the so-called initial toxicity since diffusion through dentine channels is the strongest in the beginning phase. Any noxa that results in initial pulpal damage will affect blood flow and capillary permeability.

Vital-microscopic examinations provide a possibility to clarify immediate, initial toxicity responses.

THE ROLE OF DENTOALVEOLAR SURGERY IN THE TREATMENT OF DENTAL DISEASES IN CHILDHOOD AND ADOLESCENCE

OROSZ, M.1, TARJÁN, I.2, GÁBRIS, K.2

1 Educational Dept, in Dental Surgery, Faculty of Dentistry, Semmelweis University, Budapest, Hungary; department of Pedodontics and Orthodontics, Faculty of Dentistry, Semmelweis University

After Hungary has joined the European Union, several professional and administrative changes have been implemented in dentistry. In accordance with the new standards, dentoalveolar surgery, pedodontics and orthodontics have become separate specialities. In this situation dentists with only one speciality face challenges, and the importance of teamwork increases. Having worked in full cooperation, authors report on their common experience. Frequent cases and rare solutions are introduced, including surgical intervention supporting orthodontic treatment, the therapy of im-