The Journal of the Dental Association of Thailand最新文献

The relationship of recurrent aphthous stomatitis (RAS) to psychological factors has been reported. The purpose of this study was to determine anxiety in RAS patients. All new patients seen during May 1988-November 1988 at the Oral Diagnosis Clinic, Department of Oral Medicine, Faculty of Dentistry, Mahidol University, completed a questionnaire regarding their history of RAS. For the measurement of anxiety, patients were given the Self-rating Anxiety Scale (SAS). Of the 3,106 patients studied, 46.7% reported a positive history of RAS. In this population, females were significantly (P less than 0.001) more anxious than males. The mean SAS score obtained from patients with RAS was significantly (P less than 0.001) higher than that of patients without RAS in each sex. It is concluded that patients with RAS are more anxious than patients without RAS.

This article reported a study of cephalography in 60 Thalassemic patients between the age of 11-16 years old. There were 8 beta-thalassemia, 35 beta-thalassemia/Hb E and 17 Hb H diseases. Sixty age-matched controlled patients were used for comparison. It was found that 11 thalassemic patients (18.2%) had showed absence of frontal sinus, only 3 cases had showed absence of maxillary sinus, 38 cases (63.3%) had thickening of frontal bone and parietal bone, mostly in the anterior region. Twenty-two cases (36.6%) had fine granular pattern of bone, five cases (8.3%) had hair on end appearance and 44 cases (73.3%) had thin cortex at posterior and inferior margins of ramus. There were not found in control subjects. There was no significant relationship between the absence of frontal sinus and the thickening of the frontal bone at p less than 0.05.

The purpose of this study was to compare the child's behavior between the two groups of oral sedative drugs: a) Chloral hydrate and Promethazine and b) Hydroxyzine and Diazepam. Fourteen healthy children, aged 3 to 5 years old, participated in this study. All children exhibited negative behavior and required at least two restorative appointments with the use of oral sedative drugs and nitrous oxide-oxygen inhalation sedation. The drugs were randomly administered in a double-blind manner. The degree of sleep, crying, movement and overall behavior were evaluated during the operative procedures. With respect to sleeping, there was no significant difference in the child's behavior between the two drug groups. With respect to crying, the children who had Hydroxyzine and Diazepam cried significantly less than when they had Chloral hydrate and Promethazine at the time of injection and rubber dam placement (P less than 0.05). With respect to movement, the children who had Hydroxyzine and Diazepam moved significantly less than when they had Chloral hydrate and Promethazine at the time of injection, rubber dam placement, and the 60 minute interval (P less than 0.05). For overall behavior, the children who had Hydroxyzine and Diazepam behaved better than when they had Chloral hydrate and Promethazine (P less than 0.05).

This report presented a case having a vital maxillary lateral incisor with a talon cusp, dens invaginatus and radicular palatal groove. A periodontal pocket of 6 mm. was found adjacent to the radicular palatal groove. The treatment for this case included the prophylactic grinding of the talon cusp, restoration of dens invaginatus, and filling the supragingival portion of the radicular palatal groove with light-cured composite resin to erradicate plaque retention. Only degranulation and root planing was performed in order to establish the healthy dentogingival unit without any treatment of the subgingival portion of the radicular palatal groove. The patient was motivated to maintain good oral hygiene for preventing or minimizing the recurrence of periodontal disease.

In the past 10 years, the dental caries prevalences of children in developed countries have declined dramatically and the same trend seems to appear for Thailand. This report will review the current knowledge and technology of many modalities in preventive dentistry on which concerted use will bring about the highest efficiency in preventing caries & gingivitis in children. In part one, the etiology of caries & periodontal disease in children will be reviewed. The use of systemic and topical fluoride, pit and fissure sealant are the first two methods of preventive dentistry discussed. The mechanical plaque control, diet modification and infant oral health counseling will be presented in part two.

Incorporating a surgical procedure with orthodontics makes it possible to complete treatment in a shorter period of time due to the ability to more rapidly move teeth. Corticotomy-facilitated orthodontics is a method of treatment that has the potential to greatly decrease the time involved and increase the quality of orthodontic services to the adult patient. The corticotomy procedure is a surgical technique in which a fissure is made through the cortical plate of bone that surrounds a tooth. The tooth is in a block of bone that is connected to other teeth and structures only through the medullary bone. This procedure claims that the teeth are more stable after this type of treatment may be due to less disruption of the periodontal ligament by osteoclastic activity and/or that the callus formed as bone heals leads to greater stability.

Nowadays, we referred to the European standards in model analysis which was important procedure in orthodontic diagnosis and treatment planning. This study was to determine Thai standards according to Korkhaus method from 93 samples (50 males, 43 females) which were selected by purposive random sampling. Their criteria were normal development of occlusion, acceptable facial profile with no any teeth removal and all incisors erupted. There were a significant sex difference in 6 parameters and not differ in the other (alpha = 0.05).

Dentist can provide basic and emergency treatment for cleft lip and palate infants, including instruction for maternal acception of anomaly infants and construction of passive obtulators. Appropriate feeding technic with obtulators can help the defected babies to grow as the normals.

The bonded etched porcelain laminate veneer is a conservative esthetic treatment to restore fractured, malaligned, worn or discoloured teeth. The advantages of veneers over crowns and clinical techniques for placing porcelain laminate veneers have been described. Three study cases are presented.