Clinical appearance of G-IClinical appearance of G-I

66 조조이재용이재용 , , 이호정이호정 , , 인경진인경진임강순임강순 , , 임흥식임흥식 , , 조용현조용현

Indication for useIndication for use

Type Type ⅠⅠ– luting cementluting cement

Type ⅡType Ⅱ– restorative meterialsrestorative meterials

Type ⅢType Ⅲ– fast-setting lining materials and fissure sealantsfast-setting lining materials and fissure sealants

Restorative materialsRestorative materials

Restoration of erosion/abrasion lesions Restoration of erosion/abrasion lesions without cavity preparationwithout cavity preparation

sealing and filling of occlusal pits and fissuresealing and filling of occlusal pits and fissure restoration of deciduous teethrestoration of deciduous teeth restoration of class restoration of class ⅤⅤ carious lesions carious lesions restoration of class restoration of class carious lesions, Ⅲ carious lesions, Ⅲ

preferably using a lingual approachpreferably using a lingual approach

Repair of defective margins in restorationsRepair of defective margins in restorations

Minimal cavity preparationsMinimal cavity preparations

core buildupcore buildup

provisional restorationsprovisional restorations

sealing of root surfaces for overdenturessealing of root surfaces for overdentures

Fast-setting lining cement and Fast-setting lining cement and basesbases

Lining of all types of cavities where a Lining of all types of cavities where a biological seal and cariostatic action are biological seal and cariostatic action are requiredrequired

replacement of carious dentine for the replacement of carious dentine for the attachment of composite resins using the attachment of composite resins using the acid-etch techniqueacid-etch technique

sealing and filling of occlusal fissures sealing and filling of occlusal fissures showing early signs of cariesshowing early signs of caries

Luting cementsLuting cements

High caries incidenceHigh caries incidence

– fluoride releasefluoride release

porcelain marginporcelain margin

– translucency (cosmetic)translucency (cosmetic)

Contraindication for useContraindication for use

Class Class carious lesions or fractured Ⅳ carious lesions or fractured Ⅳincisorsincisors

lesions involving large areas of labial lesions involving large areas of labial enamel where aesthetics is of major enamel where aesthetics is of major importanceimportance

class carious lesionsⅡclass carious lesionsⅡ lost cusp areaslost cusp areas

Laminate veneerLaminate veneer

Ideal preparation for a Ideal preparation for a porcelain laminateporcelain laminate

G-I cement G-I cement 적용적용

Class Class restorationⅤ restorationⅤ

Glass-ionomer cement/composite resin Glass-ionomer cement/composite resin laminate laminate 사용사용

Class Class restorationⅢ restorationⅢ

Glass-ionomer cement/composite resin Glass-ionomer cement/composite resin laminate laminate 사용사용

G-I cement fissure sealant tech.G-I cement fissure sealant tech.

IsolateIsolate 와 와 25% 25% polyacrylic acid polyacrylic acid 도포도포 clean off debris and polyacrylic acidclean off debris and polyacrylic acid idealideal 하게 하게 mixingmixing explorerexplorer 의 의 tiptip 으로 으로 small beadsmall bead 를 찍어 를 찍어 fissurefissure 에 적용에 적용

Application Application 후 즉시 후 즉시 thin thin sheet of waxsheet of wax 로 덮는다로 덮는다 ..

SettingSetting 후 후 wax wax 제거제거 .. VarnishVarnish 를 도포한 후 를 도포한 후

excessive cement excessive cement 제거제거 another light-cured resin another light-cured resin

도포도포

Treatment of fissure cariesTreatment of fissure caries

Fissure wideningFissure widening

Carious lesionCarious lesion 이 있으면 이 있으면 제거제거

cement injectcement inject Burler’s dry foilBurler’s dry foil

Excess Excess 제거제거 silver-cermet cement silver-cermet cement

사용사용 (( 넓은 넓은 cariescaries 의 의 경우경우 ))

Class Class G-I cement restorationⅤ G-I cement restorationⅤ

Saliva controlSaliva control tooth prep.tooth prep.

LiningLining shade selectionshade selection the matrix, insertion of the the matrix, insertion of the

cementcement

Removing matrix and protecting cementRemoving matrix and protecting cement finishingfinishing

Class Class G-I restorationⅢ G-I restorationⅢ

G-I cementG-I cement 를 와동에 채우고 를 와동에 채우고 matrix stripmatrix strip 을 을 적합시킨 후 적합시킨 후 burnishburnish 하여 하여 excessive cement excessive cement 제거제거

Clinical procedures for G-I luting Clinical procedures for G-I luting cementcement

Dispensing and mixingDispensing and mixing

powder/liquid ratio : 3.5g/mLpowder/liquid ratio : 3.5g/mL 처음에 처음에 mixmix 가 너무 묽다고 가 너무 묽다고 powderpowder 를 첨가하면 안됨를 첨가하면 안됨

– mixmix 를 하다 보면 를 하다 보면 thicken & creamy thicken & creamy 해짐해짐 viscosityviscosity 는 는 spatulationspatulation 에 의존에 의존

CementationCementation

DentinDentin 의 표면을 의 표면을 25% 25% tannic acidtannic acid 로 로 3030 초간 초간 적용적용

air/water sprayair/water spray 로 로 lightly lightly drydry– overdryingoverdrying 은 은 po-po-

sensitivitysensitivity

small, stiff brushsmall, stiff brush 로 로 cement cement 적용적용

Ball-ended burnisherBall-ended burnisher 로 로 restorationrestoration 을 치아에 을 치아에 장착장착

seating seating 후 즉시 후 즉시 gingival gingival

amrginamrgin 을 을 soft waxsoft wax 로 로 covercover

– settingsetting 동안에 동안에 cementcement 의 의 gingival seepagegingival seepage 와 타액의 와 타액의 접촉을 막기 위함접촉을 막기 위함

55 분 후에 분 후에 setting setting 완료완료 setting setting 후 여분의 후 여분의 cementcement 를 제거를 제거

Restoration of Primary TeethRestoration of Primary Teeth

Class Class and restoration in primary molarⅠ Ⅱ and restoration in primary molarⅠ Ⅱ

restoration of lingual surface of primary M. incisorrestoration of lingual surface of primary M. incisor

restoration of distal surface of primary canine teethrestoration of distal surface of primary canine teeth

basebase

repair of stainless steel crownrepair of stainless steel crown

class restorationⅤclass restorationⅤ

Final restoration of primary molar or canine teeth Final restoration of primary molar or canine teeth

after a pulpotomyafter a pulpotomy

replacement of amalgamreplacement of amalgam

bonded interior restorations awaiting results of bonded interior restorations awaiting results of

direct or indirect calcium hydroxide capping of direct or indirect calcium hydroxide capping of

primary or permanent molarprimary or permanent molar

Designs of Microcavities for Designs of Microcavities for Approximal LesionsApproximal Lesions

Occlusal approachOcclusal approach– approximal class approximal class cavityⅡ cavityⅡ– approximal class approximal class microcavityⅡmicrocavityⅡ– tunnel or internal fossa cavitytunnel or internal fossa cavity

Approximal approachApproximal approach– approximal microcavityapproximal microcavity– buccolingual approximal cavitybuccolingual approximal cavity

참고문헌참고문헌

Glass-Ionomer cement, Glass-Ionomer cement,

Alan D. Wilson/John W. McLeanAlan D. Wilson/John W. McLean

1988, Quintessence Publishing Co.1988, Quintessence Publishing Co.

An Atlas of Glass-Ionomer cementAn Atlas of Glass-Ionomer cement

Graham J. MountGraham J. Mount

1994, Martin Dunitz1994, Martin Dunitz