• Title, Summary, Keyword: sealant

Search Result 328, Processing Time 0.028 seconds

Parents' recognition and attitudes toward national health insurance coverage of sealant by dental hygienist (치아홈메우기의 건강보험 급여화와 치과위생사 시술에 대한 학부모의 인식 및 태도)

  • Kim, Yun-Jeong
    • Journal of Korean society of Dental Hygiene
    • /
    • v.15 no.6
    • /
    • pp.1099-1105
    • /
    • 2015
  • Objectives: The purpose of this study was to investigate parents' recognition and attitudes toward national health insurance coverage of sealant by the dental hygienists. Methods: A self-reported questionnaire was filled out by 329 elementary school children parents in G metropolitan city and N city from July 11 to 27, 2015. The questionnaire consisted of general characteristics of the subjects, recognition and attitudes toward national health insurance coverage of sealant and sealant by the dental hygienist, and recognition toward national health insurance. The data were analyzed by a descriptive analyses, multiple regression and logistic regression analysis using SPSS 12.0 program. Results: Recognition of national health insurance coverage was 2.52 times higher in high school and 4.97 times higher in recognition toward purpose of sealant. Factor affecting recognition of national health insurance was subscription of private health insurance, recognition of sealant treatment by dental hygienist (DH) and recognition of national health insurance coverage of sealant. Attitude toward sealant treatment by DH was positive in experience of sealant, recognition of sealant treatment by DH and experience of sealant treatment by DH. Factor affecting satisfaction on the sealant by DH was recognition of sealant treatment by DH and recognition of purpose of sealant. Conclusions: To increase national health insurance coverage of sealant, it is necessary to expand positive public relations of sealant by the dental hygienist.

Antibacterial Properties of Pit and Fissure Sealant Containing S-PRG filler on Streptococcus mutans (S-PRG filler를 포함한 치면열구전색제의 Streptococcus mutans에 대한 항미생물 특성에 관한 연구)

  • An, Jinseon;Park, Howon;Seo, Hyunwoo;Lee, Siyoung
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
    • /
    • v.42 no.4
    • /
    • pp.302-311
    • /
    • 2015
  • The purpose of this study was to evaluate the antibacterial properties of a sealant containing S-PRG filler compared to those of two contemporary commercial sealants to determine the inhibition of bacterial growth in broth culture and biofilm formation using the CDC Biofilm Reactor. The BeautiSealant containing S-PRG filler, the fluoride releasing Clinpro$^{TM}$ sealant, which are known to have higher antibacterial effects, and the non-fluoride releasing Concise$^{TM}$ sealant were selected for this study. A Streptococcus mutans culture in BHI broth without sealant served as a negative control in the planktonic growth inhibition test. As a result, bacterial growth was inhibited in all three sealant groups compared to that in the control. The Clinpro$^{TM}$ sealant showed a significantly reduced number of CFUs compared to those of the BeautiSealant and Concise$^{TM}$ sealants. However, no significant difference was detected between the BeautiSealant and Concise$^{TM}$ sealants. The Clinpro$^{TM}$ sealant significantly decreased biofilm formation compared to that by the BeautiSealant and Concise$^{TM}$ sealants. No significant difference was observed between the BeautiSealant and Concise$^{TM}$ sealants. In conclusion, the sealant containing S-PRG filler had a less potent anti-bacterial property and increased biofilm formation capacity compared to those of the fluoride releasing Clinpro$^{TM}$ sealant.

EFFECT OF TIME ELAPSED FROM APPLICATION TO CURING ON THE PENETRATION OF SEALANT (치면열구전색제 도포 후 광중합 할 때까지의 경과시간이 전색제 침투에 미치는 영향)

  • Choi, Sun-Ah;Lee, Chang-Seop;Lee, Sang-Ho;Lee, Nan-Young
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
    • /
    • v.32 no.3
    • /
    • pp.491-498
    • /
    • 2005
  • Occlusal fissures and pits are ideal places for the development of caries. Pit and fissure sealants are now considered as a very effective means to prevent dental caries. The purpose of this investigation was to examine the effect on the sealant penetration of the elapse of time from the application of sealant until exposure to visible light, and to examine the effect of the filler content and tooth position on the sealant penetration. 192 extracted human premolars were used to this experiment. Following enamel conditioning, a light-polymerized sealant was applied and 4 different periods of time(3, 5, 10, 20 seconds) were allowed until exposure to the light source. The results obtained were as follows; 1. According to time, in both unfilled sealant and filled sealant penetration increases deeply through mindfulness. 2. Sealant that apply to mandiblar premolar penetrated deeply through than to maxillay teeth. 3. Penetration difference according to filler content, unfilled sealant penetrated deeply through than filled sealant. The result from this study indicated that unfilled sealant penetrated most deeply in mandible when at least 20s time elapsed.

  • PDF

AN EXPERIMENTAL STUDY ON THE ANTICARIOGENIC EFFECT OF FLUORIDE-RELEASING PIT AND FISSURE SEALANT (불소방출 치면열구전색제의 항우식효과에 관한 실험적 연구)

  • Kim, Jung-Wook
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
    • /
    • v.25 no.4
    • /
    • pp.849-857
    • /
    • 1998
  • The purpose of this study was to investigate whether fluoride-releasing pit and fissure sealant was more effective in preventing caries than conventional non-fluoride-releasing sealant. Specimens 8mm in diameter were made from sound bovine enamel. Fluoride-releasing pit and fissure sealant(Helioseal F, Vivadent, Schaan, Liechtenstein) and non-fluoride-releasing sealant(Helioseal, Vivadent, Schaan, Liechtenstein) were applied to the specimens and artificial caries was induced. Microhardness and the depth of the carious lesion was measured. The following results were obtained: 1. In group 2, sealed with fluoride-releasing sealant, there was a 58.4% decrease in microhardness. This was significantly less than the 84.4% decrease observed in group 1, sealed with non-fluoride-releasing sealant(p<0.01). 2. The average depth of the artificial carious lesion in group 2 was $30.1{\pm}9.8{\mu}m$. In group 1, sealed with non-fluoride-releasing sealant, the lesion was significantly deeper with an average depth of $58.5{\pm}4.9{\mu}m$(p<0.01). 3. Fluoride-releasing pit and fissure sealant was more anticariogenic compared to non-fluoride-releasing sealant.

  • PDF

The Properties of the Metal Hydride electrodes prepared by Silicon Sealant (Si-sealant를 이용하여 제조한 금속수소화물 전극의 특성)

  • CHOI, Jeon;PARK, Choong-Nyeon
    • Transactions of the Korean hydrogen and new energy society
    • /
    • v.4 no.2
    • /
    • pp.23-28
    • /
    • 1993
  • The $(LM)Ni_{4.5}Co_{0.1}Mn_{0.2}Al_{0.2}$ hydrogen storage alloy powders were conducted 25wt% electroless copper plating in an acidic bath. For the preparation of a hydride electrodes, the copper coated alloy powder was mixed with Si-sealant(organosilicon) and compacted with $6t/cm^2$ at room temperature. The electrode characteristics were examined through electrochemical measurements in a half cell. As a sealant contents increased, the initial discharge capacity of si-sealant bounded electrode was lower and the activation rate in high current density was slower. For extended cycles, however, the electrodes with the Si-sealant were superior in a high rate discharge and useful range of temperature over the sealant-free electrode. In addition, the cycle life increased with increasing the amount of Si-sealant added. It can be suggested from the results that the Si-sealant as a binder could be applied to the preparation of the metal hydride electrode.

  • PDF

A Study on Knowledge and Satisfaction with Sealant in Public Oral Health Project (공중구강보건사업시 치면열구전색의 인지도 및 만족도에 관한 연구)

  • Kim, Jin-Soo;Park, Hyang-Sook
    • Journal of dental hygiene science
    • /
    • v.5 no.4
    • /
    • pp.227-231
    • /
    • 2005
  • To provide basic data necessary to develop an efficient sealant project as a public oral health project, this study applied a sealant through a photodimerization method to first-graders from public primary schools in the Dong-gu Health Center in Incheon and conducted a survey on favor and knowledge of the sealant project with their parents and, consequently, obtained the following results. 1. 84.7% of the parents knew a sealant and most of them got the knowledge from a dental clinic (35.7%) or a school (31.6%). 2. A large majority of respondents (86.2%) were satisfied with sealant application; many parents (75.8%) checked for maintenance of the sealant; and 75.6% demanded reexamination after sealant application. 3. As factors associated with acceptance of a sealant, high recognition of a sealant, much experience of visiting a dental clinic, and parents' great concern about children's dental health were related to high sealant application. To put the results together, it is desirable to develop the sealant project by the Dong-gu Health Center in Incheon actively as a public oral health project.

  • PDF

THE FISSURE PENETRATION AND MICROLEAKAGE OF PIT AND FISSURE SEALANT WITH MECHANICAL PREPARATION (기계적 삭제방법을 이용한 치면열구전색제의 열구 침투도 및 미세누출)

  • Kim, Ji-Yeon;Lee, Jae-Ho;Park, Ki-Tae;Kim, Seong-Oh;Choi, Byung-Jai;Son, Heung-Kyu
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
    • /
    • v.32 no.1
    • /
    • pp.164-173
    • /
    • 2005
  • Mechanical preparation has been introduced to provide the sealant retention. The objective of this study was to compare the fissure penetration and the microleakage of pit and fissure sealant using mechanical preparation(mechanical preparation + acid etching) and acid etching only. An additional objective of this study was to compare the fissure penetration and the microleakage of unfilled and filled sealant in both methods. Sixty human premolars extracted for orthodontic purpose were selected. Thirty teeth were acid etched alone and remaining thirty teeth were prepared with a $\frac{1}{4}$ round bur and then acid etched. One-half of teeth in each surface treatment method were sealed with unfilled sealant and the other half were sealed with filled sealant. All of the teeth were thermocycled for 1200 cycles at $5^{\circ}C\;and\;55^{\circ}C$ and immersed in 5% methylene blue for 24 hours. Each tooth was sectioned bucco-lingually at mesial pit and distal pit and examined under a Measurescope. In the case of mechanical preparation, fissure penetration of sealant was significantly increased compared with the case of acid etching only(P < 0.05). The filled and unfilled sealant using mechanical preparation showed significantly decreased microleakage when compared with the unfilled sealant using acid etching only(P < 0.05). No differences were found in fissure penetration and microleakage between unfilled and filled sealant in both methods. Taken together, the results of this study suggest that mechanical preparation and filled sealant are recommended when placing pit and fissure sealant. However, further clinical studies should be performed in regard to microleakage.

  • PDF

The evaluation for adhesion and compatibility properties of polyurethane and silicone sealant for window installation (창호 시공용 폴리우레탄 및 실리콘 실란트 접착성 및 상응성 평가)

  • Ahn, Myung-Su;Jung, Jin-young;Seo, YeonWon;Kim, Sung Hyun;Bae, Keesun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • /
    • pp.75-77
    • /
    • 2014
  • Using sealant for window installation is sealing the gap between the window frame and outer wall (such as concrete). A sealant serves to prevent external environmental impacts such as moisture, rain, sand, and dust entering inside of the building and make the building durable. In order to fulfill basic jointing function of sealing, at least 6 mm joint gap between two bonding surfaces are required. Also, adhesion performance between sealant and surfaces and the compatibility with other building materials are required to check before installation. In general, 2 part polyurethane sealant and 1 part silicone sealant are most common materials for sealing the joint of window. In this study, adhesion performances of those two generic sealants reflecting actual application conditions and the compatibility evaluations with other building materials are conducted to propose proper window installation procedures.

  • PDF

Does Fibrin Sealant Reduce Seroma after Immediate Breast Reconstruction Utilizing a Latissimus Dorsi Myocutaneous Flap?

  • Cha, Han Gyu;Kang, Sang Gue;Shin, Ho Seong;Kang, Moon Seok;Nam, Seung Min
    • Archives of Plastic Surgery
    • /
    • v.39 no.5
    • /
    • pp.504-508
    • /
    • 2012
  • Background The most common complication of latissimus dorsi myocutaneous flap in breast reconstruction is seroma formation in the back. Many clinical studies have shown that fibrin sealant reduces seroma formation. We investigated any statistically significant differences in postoperative drainage and seroma formation when utilizing the fibrin sealant on the site of the latissimus dorsi myocutaneous flap harvested for immediate breast reconstruction after skin-sparing partial mastectomy. Methods A total of 46 patients underwent immediate breast reconstruction utilizing a latissimus dorsi myocutaneous island flap. Of those, 23 patients underwent the procedure without fibrin sealant and the other 23 were administered the fibrin sealant. All flaps were elevated with manual dissection by the same surgeon and were analyzed to evaluate the potential benefits of the fibrin sealant. The correlation analysis and Mann-Whitney U test were used for analyzing the drainage volume according to age, weight of the breast specimen, and body mass index. Results Although not statistically significant, the cumulative drainage fluid volume was higher in the control group until postoperative day 2 (530.1 mL compared to 502.3 mL), but the fibrin sealant group showed more drainage beginning on postoperative day 3. The donor site comparisons showed the fibrin sealant group had more drainage beginning on postoperative day 3 and the drain was removed 1 day earlier in the control group. Conclusions The use of fibrin sealant resulted in no reduction of seroma formation. Because the benefits of the fibrin sealant are not clear, the use of fibrin sealant must be fully discussed with patients before its use as a part of informed consent.

Development and Evaluation of Cold-applied Crack Sealant for Pavement Maintenance (도로포장 보수용 상온식 균열실링 재료의 개발 및 평가)

  • Kim, Yeong Min;Jeong, Kyu Dong;Lee, Kang Hoon;Im, Jeong Hyuk
    • International Journal of Highway Engineering
    • /
    • v.19 no.2
    • /
    • pp.45-53
    • /
    • 2017
  • PURPOSES: The objectives of this study are to develop a new cold-applied crack sealant and to evaluate its properties and field applicability by comparing with other conventionally used crack sealants. METHODS : A new cold-applied crack sealant was developed by using neoprene latex to improve material properties. The fundamental properties such as viscosity, residue %, penetration, and softening point of the developed crack sealant were tested by TxDOT criteria to evaluate crack sealing capability. Moreover, the performance of the developed cold-applied crack sealant was evaluated under both laboratory and field conditions. In the laboratory, the bond property was evaluated using the developed cold-applied crack sealant and conventional hot-applied crack sealant by the bond-properties test standardized under ASTM D 6690. In the field, test sections were constructed on three areas: a trunk road, bus-only lane, and motorway, with the developed crack sealant and three conventional crack sealants. After construction, early field-inspection was performed on the test sections. RESULTS AND CONCLUSIONS : Overall, the developed cold-applied crack sealant demonstrates reasonable storage stability, durability, and bond property compared to conventional hot-applied crack sealants. From the test sections, it was established that the developed cold-applied crack sealant does not pose construction issues. Moreover, the early performance was verified through field inspection. However, as the field inspection was conducted a week after the construction, it is necessary to conduct an inspection of performance from a long-term point of view.