• 제목/요약/키워드: Dentin Bonding Agents

검색결과 83건 처리시간 0.021초

상아질의 치면 처리에 따른 합착용 레진 강화형 글라스 아이오노머 시멘트의 전단결합강도 (SHEAR BOND STRENGTH OF PRETREATED DENTIN SURFACE WITH RESIN-REINFORCED GLASS IONOMER CEMENT)

  • 최혜숙;이청희;조광헌
    • 대한치과보철학회지
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    • 제39권5호
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    • pp.502-513
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    • 2001
  • The purpose of this study was to evaluate the effect of dentin pretreatment with Dentin Conditioner, Ultra-Etch, conditioner of Fuji Plus cement on the shear bond strength of resin-reinforced glass ionomer cements to dentin and analyze the fractured surfaces. To evaluate the bond strength, the extracted human teeth which had uniform area of exposed dentin were cemented with conventional glass ionomer cement, 3M $RelyX^{TM}$ Luting (Vitremer luting cement), Fuji Plus cement after dentin pretreatment. The shear bond strength was measured using the Universal testing machine (Instron Co., USA) with a crosshead speed of 1mm/m. The effect of dentin pretreatment was evaluated by observing pretreated dentin surfaces under the scanning electron microscope, measuring the shear bond strength and observing the fractured surfaces under the scanning electron microscope. The results were as follows : On the SEM observation of surface morphology, the specimens treated with Dentin Conditioner. Ultra-Etch and conditioner of Fuji Plus cement were removed the smear layer and funneled dentinal tubules in dentin surfaces. In $RelyX^{TM}$ Luting cement group, shear bond strength of pretreated group was significantly higher than control group. In Fuji Plus cement group and Fuji I group, regardless of the type of pretreatment agents, there was tendency of increase in the shear bond strength. On the SEM observation of fractured surfaces, as the shear bond strength increase, it were shown thicker cement layers and were not shown dentinal tubules According to these results. it were shown that dentin pretreatment have much effect on bonding states.

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수종 상아질 접착제의 결합강도와 중합률에 관한 연구 (A STUDY ON BONE STRENGTH AND THE DEGREE OF CONVERSION OF DENTIN BONDING AGENTS)

  • 김병현;권혁춘
    • Restorative Dentistry and Endodontics
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    • 제23권1호
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    • pp.68-93
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    • 1998
  • The physical properties of polymer are greatly influenced by the extent to which a resin cures. The presence of un reacted monomer can, have a plasticizing effect on the polymer, thereby altering the physical and mechanical properties of dentin bonding agent (DBA). If the DBA does not polymerize sufficiently, it will leave a weak bonding layer and lead to lower bond strength. The purpose of this study was to evaluate the shear bond strengths(SBS) and the degree of conversion (DC) of 4 commercialy avilable dentin bonding systems which are composed of 2 multi-bottle systems [Scotchbond Multi-Purpose (SMP), AeliteBond(AB)] and 2 onebottle systems [SingleBond(SB), One-Step(OS)]. For shear bond strength measurement, labial surfaces of freshly extracted bovine incisors were ground with # 600 grit SiC paper to expose dentin. Four different groups of samples were formed, with 10 samples. being made for each of the 4 commercial DBA in each group according to the curing sequences of DBA and overlayer thickness of composites: Group I (standard cure and 1mm thick composites) : The DBA was light cured and the composites of 1mm thickness was applied ; Group II (standard cure and 2mm thick composites) : The DBA was light cured and the composites of 2mm thickness was applied; Group III (simultaneous cure and 1mm thick composites) : The DBA was not light-cured and simultaneously cured with composites of 1mm thickness; Group N (simultaneous cure and 2mm thick composites) : The DBA was. not light-cured and simultaneously cured with composites of 2mm thickness. The SBS was measured immediately after the composites was bonded to the bovine dentin using an Instron machine. The DC of the DBA was examined in a thin film under simulated conditions of the experimental groups according to the curing sequences and overlayer thickness of composites in the SBS test. using a Fourier transform Infrared(FTIR) spectrometer. The following results were obtained from SBS tests and DC measurements 1. In SBS tests, the multi-bottle DBA(SMP, AB) had a generally higher bond strength values than the one bottle DBA(SB, OS). In DC measurements, the one bottle DBA(SB, OS) had a significantly higher DC than the multi-bottle DBA(SMP, AB). 2. In all DBAs except OS, there was no significant difference between the bond strength of group I (standard cure and 1mm thick composites) and that of group III (simultaneous cure and 1mm thick composites). SMP, SB in Group I had a significantly higher DC than those in group III, but AB, OS in group I had a significantly lower DC than those in group III 3. All DBAs in Goup II (standard cure and 2mm thick composites) had significantly higher bond strength and DC than those in Group N (simultaneous cure and 2mm thick composites). 4. In all DBAs, there was no significantly different SBS and DC between Group I and Group II, but all DBAs in Group III had significantly higher SBS and DC than those in Group IV.

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상아세관의 주행방향에 따른 상아질 접착제의 침투양상에 대한 공초점레이저주사현미경 연구 (EFFECT OF DENTINAL TUBULES ORIENTATION ON PENETRATION PATTERN OF DENTIN ADHESIVES USING CONFOCAL LASER SCANNING MICROSCOPY)

  • 김동준;황윤찬;김선호;오원만;황인남
    • Restorative Dentistry and Endodontics
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    • 제28권5호
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    • pp.392-401
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    • 2003
  • The purpose of this study was to evaluate the penetration pattern of dentin adhesives according to the orientation of dentinal tubules with confocal laser scanning microscopy. Specimens having perpendicular. parallel and oblique surface to dentinal tubules were fabricated. The primer of dentin adhesives (ALL $BOND^{\circledR}{\;}2,{\;}CLEARFIL^{TM}$ SE BOND and PQ1) was mixed with fluorescent material. rhodamine B isothio-cyanate (Aldrich Cherm. CO., Milw., USA), It was applied to the specimens according to the instructions of manufactures. The specimens were covered with composite resin (Estelite, shade A2) and then cut to a thickness of 500$\mu\textrm{m}$ with low speed saw (Isomet^{TM}, Buehler. USA). The adhesive pattern of dentin adhesives were observed by fluorescence image using confocal laser scanning microscopy. The results were as follows. 1. For the groups with tubules perpendicular to bonded surface. funnel shape of resin tag was observed in all specimen. However. resin tags were more prominent in phosphoric acid etching system (ALL $BOND^{\circledR}$ 2 and PQ1) than self etching system ($CLEARFIL^{TM}$ SE BOND). 2. For the groups with tubules parallel to bonded surface. rhodamine-labeled primer penetrated into peritubular dentin parallel to the orientation of dentinal tubules. But rhodamine-labeled primer of PQ1 diffused more radially into surrounding intertubular dentin than other dentin adhesive systems. 3. For the groups with tubules oblique to bonded surface. resin tags appeared irregular and discontinuous. But they penetrated deeper into dentinal tubules than other groups.

A confocal microscopic study of dentinal infiltrations in one-bottle adhesive systems bonded to Class V cavities

  • Kim, Hyung-Su;Park, Sung-Ho
    • 대한치과보존학회:학술대회논문집
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    • 대한치과보존학회 2001년도 추계학술대회(제116회) 및 13회 Workshop 제3회 한ㆍ일 치과보존학회 공동학술대회 초록집
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    • pp.576.2-576
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    • 2001
  • The purpose of this study was to evaluate the effect of dentinal sclerosis and tubular orientation on Class V restoration bonded with three dentin bonding agents using confocal laser scanning microscope(CLSM). Class V cavities were prepared from freshly extracted caries-free human teeth. thirty of these cavities were divided into two groups based upon the status of class V cavities: Group 1, cervical abrasive lesions without preparation; Group 2, artificially-prepared wedge-shaped cavities.(omitted)

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수종(數種) 표면처리제(表面處理劑)에 의(依)한 상아질(象牙質) 표면(表面)의 형태(形態) 변화(變化)에 관(關)한 연구(硏究) (MORPHOLOGICAL CHANGES OF DENTIN SURFACE TREATED WITH VARIOUS DENTIN SURFACE CONDITIONERS)

  • 조진호;최호영;민병순;박상진
    • Restorative Dentistry and Endodontics
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    • 제13권2호
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    • pp.323-334
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    • 1988
  • The purpose of this study was to observe the effect of dentin surface conditioners on the dentin surfaces. Freshly extracted human molars were used in this study. They were stored at $4^{\circ}C$ saline solution before experiment. The crown portions of the teeth were cut in various directions by means of wet diamond point to expose dentin which include transverse, vertical oblique, horizontal and oblique cut to the long axis (Fig. 1). Each tooth was then mounted with self curing acrylic resin in brass ring to expose the flattened dentin surfaces. Final finish was accomplished by grinding the dentin specimens with wet No. 180 and No. 600 grit silicon carbide abrasive paper until a 6.0mm in diameter on a dentin surface was exposed without pulp exposure. The specimens were divided into 9 groups according to the modes of dentin treatment procedure. The following surface treatments were applied on these preparation surfaces; Group 1: unetched (control group) after finish with No. 600 silicon carbide abrasive paper. Group 2: etched with 30% phosphoric acid for 60s Group 3: etched with 10-3 solution for 60s Group 4: Cleaned with 5% NaOCl for 30s Group 5: applied Dentin Adhesit Group 6: cleaned with 5% NaOCl followed by applying the Dentin Adhesit$^{(R)}$ Group 7: applied Photo Bond on the unetched dentin followed by applying the Photo Clearfil Bright Group 8: Etched with 30% phosphoric acid followed by applying Photo Bond and Photo Clearfil Bright Group 9: etched with 10-3 solution followed by applying Photo Bond and Photo Clearfil Bright All the specimens were stored in $37^{\circ}C$ under 50% relative humidity for 24 hours before observations. The specimens in 7, 8, and 9 group, omitting the group 1 to 6, were demineralized in 10% HCl for 10s in order to observe the resin tags. All the specimens in each group were then dried at room temperature. The dried specimens were ion coated with Eiko ion coater (Eiko-engineering Co.), and observed in Hitachi S-430 Scanning electron microscope (Hitachi, Co. Tokyo) at 15KV. The following results were obtained as follows; 1. The smear layers were still remained in group 1,2,4,5, and 6. 2. There is no effect of 5% NaOCl and 30% phosphoric acid on the changes of dentin morphology 3. The dentin treated with 10-3 solution, indicating the tubules opened when the smear layer and the dental plug dissolved. 4. In case of applying the bonding agents the resin tag was not formed at the deep area of dentinal tubules, but in case of applying the Dentin Adhesit$^{(R)}$ that was not.

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2% 클로르헥시딘 적용이 한 단계 자가부식 접착제를 이용한 복합 레진의 상아질에 대한 미세인장 결합강도에 미치는 효과 (Effect of 2% chlorhexidine application on microtensile bond strength of resin composite to dentin using one-step self-etch adhesives)

  • 장순함;허복;김현철;권용훈;박정길
    • Restorative Dentistry and Endodontics
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    • 제35권6호
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    • pp.486-491
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    • 2010
  • 연구목적: 이 연구의 목적은 2% 클로르헥시딘 적용이 한 단계 자가부식접착제를 이용한 직접 복합 레진 수복의 미세 인장 강도에 미치는 영향을 평가하는 것이었다. 연구 재료 및 방법: 24개의 발거된 대구치를 사용하여 3종류의 한 단계 자가부식접착제 (Clearfil $S^3$ Bond, Xeno V, G-Bond) 를 클로르헥시딘을 적용한 그룹과 적용하지 않은 그룹, 총 6개의 그룹으로 나누었다. 클로르헥시딘을 적용하거나 적용하지 않고 그 상부에 각각의 접착제를 적용하고 광중합 복합 레진으로 수복하였다. 24시간 동안 실온의 증류수에 보관한 후 각 그룹당 10개의 시편을 준비 하여 모든 시편의 미세인장 결합 강도를 측정하였다. 결과: 2% 클로르헥시딘 적용이 한 단계 자가부식접착제를 이용한 복합레진 수복의 미세인장 결합강도에 영향을 미치지 않았다. 클로르헥시딘 적용과 상관없이 Clearfil $S^3$ Bond가 가장 높은 미세인장 결합강도 값을 나타내었고 그 다음은 GBond, Xeno V 순이었다. 파절 양상은 대부분 접착성 파절을 보였고 일부는 응집성 파절을 보였다. 결론: 2% 클로르헥시딘 적용이 한 단계 자가부식접착제를 이용한 복합레진 수복의 미세인장 결합강도에 영향을 미치지 않았다.

강화형 글라스 아이오노머 합착용 시멘트의 접합강도 및 변연누출에 대한 연구 (COMPARISON OF SHEAR BOND STRENGTH AND MARGINAL LEAKAGE OF RESIN MODIFIED GLASS IONOMER CEMENTS)

  • 박혜양;오남식;이근우;이호용
    • 대한치과보철학회지
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    • 제35권4호
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    • pp.647-661
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    • 1997
  • The resin modified glass ionomer cements(RMGICs) have been used for years since 1989. Recently it has been developed for luting of fixed restorations. To evaluate the bond strength and marginal leakage of RMGICs for luting usage, the 80 extracted human molars which had uniform area of exposed dentin were cemented with 3 types of RMGICs(Fuji Duet, Advance, Vitremer), a conventional Glass Ionomer Cement(GIC-Fuji I), and a resin cement (Panavia 21) to base metal alloy(Ni-Cr-Be). After thermocycling the specimens were immersed in basic fuschin dye for measuring marginal leakage. The shear bond strength was measured with Instron and the maximum dye penetration was measured to 0.1mm. The types of fractured patterns were determined with stereoscope(${\times}7.5$). The results are as follows. 1. The difference between 3 RMGICs and a conventional GIC in shear bond strength was not statistically significant. It seemed that RMGICs had lower shear bond strength than resin cement. (p<0.01) 2. The mean scores of marginal leakage had no significant difference between the resin cement and 3 RMGICs but it was much higher in conventional GIC than the RMGICs (p<0.05) 3. It was determined that the manufacturer and the methods of dentin pretreatment determined the pattern of fracture surfaces and the frequency of adhesive failure between teeth and 3 RMGICs standed as in following order - Vitremer, Advance, Fuji Duet. (p<0. 01) When the fracture pattern was analyzed, it could be said that the materials and the method of dentin pretreatment have much effect on bonding states. This means that the dentin bonding agents should be improved. But the limited products in this experiment can not evaluate the physical properties of the entire RMGICs. Therefore a further study which can evaluate various RMGICs should be in progress to develope better cements.

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상아질에 적용된 재 습윤제가 미세인장 결합강도에 미치는 영향 (EFFECT OF REWETTING AGENT ON DENTINAL MICROTENSILE BOND STRENGTH)

  • 강희영;조영곤;김종욱;박병철;유상훈;진철희;최희영;기영재
    • Restorative Dentistry and Endodontics
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    • 제29권2호
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    • pp.153-161
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    • 2004
  • This study investigated that the effect of rewetting agent on dentinal microtensile bond strength(${\mu}TBS$). Human molars were sectioned to expose the superficial dentin surfaces. Samples were divided into two groups according to type of adhesives-Single Bond (S) and One-Step (0)], and again subdivided into five groups by different dentin surface treatment-dry for 15s (D), blot dry (BD) or dry for 15s, and rewet with different rewetting agents [distilled water (DW), Gluma Desensitizer (GD) and Aqua-Prep (AP)] for 30s. After application of adhesive, composite resin was built up on the bonding surface. Each tooth was sectioned to obtain stick with $1\textrm{mm}^2$ cross sectional area and the ${\mu}TBS$ was determined by EZ test. In the S group, the mean ${\mu}TBS$ of GD, AP, and BD group was significantly higher than that of DW and D group (p < 0.05), In the O group, the mean, ${\mu}TBS$ of AP, GD, BD and DW group was significantly higher than that of D group (p < 0.05). The data suggested that Gluma Desensitizer and Aqua-Prep could be successfully used as rewetting agents, and Distilled water could be acceptable in aceton based adhesive system only.

수종 상아질접착제의 상아질침투양상에 관한 주사현미경적 연구 (SCANNING ELECTRON MICROSCOPIC STUDY ON RESIN INFILTRATIONS AFTER DENTIN TREATMENTS)

  • 권균원;박상진;민병순;최호영;최기운
    • Restorative Dentistry and Endodontics
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    • 제18권1호
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    • pp.38-53
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    • 1993
  • The purpose of this study was to observe the resin infiltration pattern into dentin by various dentin bonding agents. Freshley extracted 36 sound human molars were used in this study. They were stored at $4^{\circ}C$ physiologic saline solution before experiment. All the teeth were cross-sectioned to expose dentin below about 3.0mm at the cusp tip and above 2.0mm at the cemento-enamel junction with Crystal Cutter (MC411 D, Maruto Co., Japan), and were made into specimens for this study (Fig. 1). The specimen experimental groups were divided into 9 groups by dentin surface treatment as following procedures: Group I: Treated with Gluma Cleanser followed by Gluma Primer and Sealer Group 2. Treated with Gluma Cleanser followed by Scotch bond 2 Adhesive Group 3: Treated with Gluma Cleanser followed by Tenure Solution A, Band Visar Seal Group 4: Treated with Scotchprep followed by Scotch bond 2 Adhesive Group 5: Treated with Scotchprep followed by Gluma Primer and Sealer Group 6: Treated with Scotch prep followed by Tenure Solution A, Band Visar Seal Group 7: Treated with Tenure Conditioner followed by Tenure Solution A, Band Visar Seal Group 8: Treated with Tenure Conditioner followed by Scotchbond 2 Adhesive Group 9: Treated with Tenure Conditioner followed by Gluma Primer and Sealer 27 specimens of 36 specimens were divided into 9 groups (Group 1-9), and were used for observation of resin tags. Remaining 9 specimens were divided into 3 groups (Group 1,4 and 7), and were used for observation of fractured dentin surfaces. Specimens to observe the resin tag were demineralized with 20% HCl for 14 hours, specimens to observe the fractured dentin surfaces were demineralized with 10% HCl for 3 minutes. All the specimens were gold-coated with Eiko ion coater (Eiko-engineering Co.), and observed under Scanning electron microscope (Hitachi S-2300) at 20 KV. The following results were obtained: 1. In group 1 treated with Gluma Cleanser, Gluma Primer, and Sealer, most resin tags were more than $100{\mu}m$. 2. In group 4 treated with Scotch prep and Scotchbond 2 Adhesive, most resin tags were about $10{\mu}m$. 3. In group 7 treated with Tenure conditioner, Tenure Solution A, B, and Visar Seal, most resin tags were about $10{\mu}m$ but occasionally resin tags were more than $100{\mu}m$. 4. In groups 2,3,5,6,8 and 9, the lengths of resin tags were inconsistent and the amount of resin tags were reduced.

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레진 인레이 합착시 지각과민처리제의 사용이 상아질 결합강도에 미치는 영향 (EFFECT OF A DESENSITIZER ON DENTINAL BOND STRENGTH IN CEMENTATION OF COMPOSITE RESIN INLAY)

  • 한세희;조영곤
    • Restorative Dentistry and Endodontics
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    • 제34권3호
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    • pp.223-231
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    • 2009
  • 본 연구는 인레이 와동에서 인상을 채득하기 전 지각과민처리제 (Isodan)과 2단계 전부식 접착시스템 (One-Step)과 단일단계 자가부식 접착시스템 (All-Bond SE)으로 처리한 후, 복합레진 인레이를 자가 접착형 레진시멘트인 BisCem으로 합착시키는 경우 레진 인레이의 상아질에 대한 미세인장결합강도와 주사현미경적인 분석을 통하여 비교하였다. 본 연구의 결과, 지각과민처리제인 Isodan만을 사용하는 경우 레진 인레이의 결합강도를 감소시킬 수 있으므로 단독 사용보다는 단일 단계 자가부식 시스템 (All-Bond SE)과 같이 사용하는 것이 추천된다.