ISSN : 0376-4672
목적 : 중합 광이 닿지 않는 곳에서 자가중합을 촉진하는 primer (G-Cem One Adhesive Enhancing Primer)가 개발되었다. primer의 적용에 따른 중합도의 차이에 대해 비교하였다. 재료 및 방법 : 이중중합 형태의 자가접착레진시멘트인 G-Cem One, G-Cem Linkace, Rely-X U200, 이중중합 레진시멘트인 Rely-X Ultimate와 G-Cem One Primer를 사용하였다. 알루미늄으로 직경 5 ㎜, 두께 2 ㎜의 몰드를 제작하고 유리판 위에 primer를 적용한 후 각각의 재료들을 몰드에 채우고 자가중합을 유도하였으며 Vickers 미세경도 측정기를 이용하여 혼합 후 10 분, 1 시간, 3 시간, 6 시간, 24 시간 후의 미세경도를 측정하였다. 모든 경도 값을 통계처리 하였다. 결과 : G-Cem One, G-Cem LinkAce, Rely-X U200은 시멘트의 혼합 초기에 primer를 적용했을 때 미세경도 값이 높게 나타났으며, Rely-X Ultimate에서는 primer의 적용이 유의한 차이를 보이지 않았다. 결론 : 새로운 primer의 적용은 이중중합 레진시멘트의 혼합 초기에 중합을 촉진시키는 효과가 있다
Objectives: The primer (G-Cem One Adhesive Enhancing Primer), which promote self-polymerization more in the absence of polymerization light is developed. To date, many studies on the mechanical properties and prognosis of various self-adhesive resin cements have been published. Since there is almost no comparison of the degree of polymerization depending on the application of primers, this study was attempted. Materials and Methods : A total of three types of dual cure self-adhesive resin cements (G-Cem One, G-Cem LinkAce, Rely-X U200) and one type of dual cure resin cement (Rely-X Ultimate) were evaluated. G-Cem One Primer was used as a primer enhancing of auto-polymerization. A mold 5 mm in diameter and 2 mm thick was made from aluminum, primers were applied on a glass slit, and each material was filled in the mold, and self-polymerization was induced. The microhardness was measured with a Vickers microhardness machine after 10 minutes, 1 hour,3 hours,6 hours and 24 hours. All dates were statistically analyzed. Results : G-Cem One, G-Cem LinkAce and Rely-X U200 showed high microhardness values when primers were applied at the beginning of cement mixing. Primer application did not show significantly different in Rely-X Ultimate. Conclusion : The application of a new primer has a dual cure self-adhesive resin cement which promotes the polymerization at the beginning of the mixing.
Objectives: The crown fracture of anterior teeth is most frequent dental trauma, and maxillary central incisor is most common tooth to be broken. This report presents combined treatment procedure of fractured maxillary anterior teeth with alveolar bone fracture. Two right maxillary incisors were treated with resin-wire splint and endodontic treatment. Right maxillary lateral incisors were treated with root coverage with connective tissue graft. Right maxillary central incisor was treated with non-vital bleaching and direct composite restoration. After one year of follow-up, the resin restoration of the maxillary incisor was well maintained and showed good periodontal condition even after root canal treatment.
With a dramatic increase in the older population, there is a growing interest in strategies for managing oral disorders in the elderly. This study aims to introduce oral frailty and propose dental and oral health services for older people. This study reviewed the literature on oral frailty and frailty in older people by searching academic databases, government documents, and related websites. There is a growing awareness that the recovery and maintenance of oral function help delay the onset of frailty and conditions requiring nursing care, thereby extending a healthy life expectancy. The Japanese Society of Gerodontology (JSG) proposed the concept of oral hypofunction. JSG defined oral hypofunction as a presentation of 7 signs or symptoms: oral uncleanness, oral dryness, a decline in occlusal force, decline in the motor function of the tongue and lips, decrease in tongue pressure, decline in chewing function, and reduction in the swallowing function. JSG suggested diagnosing oral hypofunction if the criteria for three or more signs or symptoms are met. More evidence should be gathered from clinical studies and trials in the Korean community care setting to develop better diagnostic criteria and management strategies for the Korean elderly. Better health in older people can be achieved by strengthening the dental and oral health provider’s accountability of healthcare systems. The evolving concept of oral frailty paves the way for effective dental care for the elderly in Korea.
It is obvious that our society is aging and the number of patients with dry mouth will increase in the future. In my opinion, if the dentists working at the local dental clinic pay a little more attention to these patients, they can perform a simple medical history check and the measurement of saliva secretion rate, and may make a clinical diagnosis for dry mouth. Dry mouth patients related to systemic diseases (especially Sjögren's syndrome) and to drug use need to be referred to a physician, and sialogogue for responders and artificial saliva for non-responders should be considered preferentially. We should pay attention to dry mouth-related diseases such as halitosis, and halitosis can be effectively treated by improving oral hygiene including tongue brushing and using gargle solution. Aging cannot be avoided. Now is the time for all dentists to pay attention to the dry mouth that elderly patients may be experiencing.
Oral mucosal lesions are more common among the elderly people. Oral health, including oral mucosal disease, is a important factor of quality of life in elderly people. Oral mucosal disease can lead to poor nutritional intake of the elderly due to pain and discomfort. Identification and institution of proper treatment of these lesions are an important part of total oral health care. In this article will review common oral mucosal disease in eldery.
