Single Complete DenturesSingle Complete DenturesSingle Complete DenturesSingle Complete Dentures

Maxillary Single DenturesMaxillary Single DenturesMaxillary Single DenturesMaxillary Single Dentures

More commonMore common Teeth usually lost before Teeth usually lost before

their mandibular antagoniststheir mandibular antagonists

More commonMore common Teeth usually lost before Teeth usually lost before

their mandibular antagoniststheir mandibular antagonists

Mandibular Single DenturesMandibular Single DenturesMandibular Single DenturesMandibular Single Dentures

Avoid when possibleAvoid when possible Severe ridge resorption due to Severe ridge resorption due to

forceforce Stress reduction should be used Stress reduction should be used – Processed resilient denture linerProcessed resilient denture liner– OverdentureOverdenture– Implant retained dentureImplant retained denture

Avoid when possibleAvoid when possible Severe ridge resorption due to Severe ridge resorption due to

forceforce Stress reduction should be used Stress reduction should be used – Processed resilient denture linerProcessed resilient denture liner– OverdentureOverdenture– Implant retained dentureImplant retained denture

Single DenturesSingle DenturesSingle DenturesSingle Dentures

More difficultMore difficult Greater force causes Greater force causes

– DisplacementDisplacement– Fracture due to flexureFracture due to flexure– Severe residual ridge resorption Severe residual ridge resorption

More difficultMore difficult Greater force causes Greater force causes

– DisplacementDisplacement– Fracture due to flexureFracture due to flexure– Severe residual ridge resorption Severe residual ridge resorption

Single DenturesSingle DenturesSingle DenturesSingle Dentures

More difficultMore difficult Tooth malpositions decrease Tooth malpositions decrease

stability (extrusion, tipping, stability (extrusion, tipping, rotation) rotation)

Difficulty balancingDifficulty balancing

More difficultMore difficult Tooth malpositions decrease Tooth malpositions decrease

stability (extrusion, tipping, stability (extrusion, tipping, rotation) rotation)

Difficulty balancingDifficulty balancing

Single Complete DentureSingle Complete DentureSingle Complete DentureSingle Complete Denture

Occlusal adjustment of natural teethOcclusal adjustment of natural teeth– Reduce severe curve of Spee level Reduce severe curve of Spee level

supraeruptionssupraeruptions– Recontour rotated teeth Recontour rotated teeth

to permit contacts on to permit contacts on flat surfacesflat surfaces

Occlusal adjustment of natural teethOcclusal adjustment of natural teeth– Reduce severe curve of Spee level Reduce severe curve of Spee level

supraeruptionssupraeruptions– Recontour rotated teeth Recontour rotated teeth

to permit contacts on to permit contacts on flat surfacesflat surfaces

Single Complete DenturesSingle Complete DenturesSingle Complete DenturesSingle Complete Dentures

– Reduce cusps in shaded area, to level plane of occlusionReduce cusps in shaded area, to level plane of occlusion– Reduce cusps in shaded area, to level plane of occlusionReduce cusps in shaded area, to level plane of occlusion

Mock adjustment can be

performed on a diagnostic cast Mock adjustment can be

performed on a diagnostic cast

Severe Curve of SpeeSevere Curve of Spee

SupereruptionSupereruption

Avoid a Single Denture Against Avoid a Single Denture Against Anterior Teeth AloneAnterior Teeth AloneAvoid a Single Denture Against Avoid a Single Denture Against Anterior Teeth AloneAnterior Teeth Alone

ResorptionResorption LooseningLoosening FractureFracture Combination SyndromeCombination Syndrome

ResorptionResorption LooseningLoosening FractureFracture Combination SyndromeCombination Syndrome

Avoid a Single Denture Against Anterior Avoid a Single Denture Against Anterior Teeth AloneTeeth AloneAvoid a Single Denture Against Anterior Avoid a Single Denture Against Anterior Teeth AloneTeeth Alone

Fabricate a RPD for Stress Fabricate a RPD for Stress DistributionDistribution

Make CD & RPD at the Make CD & RPD at the same timesame time– Ensures optimal occlusionEnsures optimal occlusion

Fabricate a RPD for Stress Fabricate a RPD for Stress DistributionDistribution

Make CD & RPD at the Make CD & RPD at the same timesame time– Ensures optimal occlusionEnsures optimal occlusion

Occlusion RimsOcclusion RimsOcclusion RimsOcclusion Rims Use to establish OVD, Use to establish OVD,

NOT Incisal DisplayNOT Incisal Display Overbite will be Overbite will be

incorporated when incorporated when anterior teeth are set, anterior teeth are set, lengthening incisal lengthening incisal edgesedges

Use to establish OVD, Use to establish OVD, NOT Incisal DisplayNOT Incisal Display

Overbite will be Overbite will be incorporated when incorporated when anterior teeth are set, anterior teeth are set, lengthening incisal lengthening incisal edgesedges

Occlusion RimsOcclusion RimsOcclusion RimsOcclusion Rims

Flat Surface for Flat Surface for Opposing TeethOpposing Teeth– No inclinesNo inclines– If steps in occlusal If steps in occlusal

plane, provide flat plane, provide flat areas for opposing areas for opposing

natural teethnatural teeth

Flat Surface for Flat Surface for Opposing TeethOpposing Teeth– No inclinesNo inclines– If steps in occlusal If steps in occlusal

plane, provide flat plane, provide flat areas for opposing areas for opposing

natural teethnatural teeth

XXXX

Maxillo-Mandibular RelationsMaxillo-Mandibular RelationsMaxillo-Mandibular RelationsMaxillo-Mandibular Relations

Occlusion Rims on RPD Occlusion Rims on RPD framework framework

Opposes CD RimsOpposes CD Rims Centric and eccentric Centric and eccentric

records with Alluwaxrecords with Alluwax Optimizes occlusionOptimizes occlusion

Occlusion Rims on RPD Occlusion Rims on RPD framework framework

Opposes CD RimsOpposes CD Rims Centric and eccentric Centric and eccentric

records with Alluwaxrecords with Alluwax Optimizes occlusionOptimizes occlusion

Maxillo-Mandibular RelationsMaxillo-Mandibular RelationsMaxillo-Mandibular RelationsMaxillo-Mandibular Relations

Crowns or bridges Crowns or bridges should be waxed up should be waxed up against the CD tooth against the CD tooth setupsetup

Optimizes occlusionOptimizes occlusion Ensures, changes can be Ensures, changes can be

mademade

Crowns or bridges Crowns or bridges should be waxed up should be waxed up against the CD tooth against the CD tooth setupsetup

Optimizes occlusionOptimizes occlusion Ensures, changes can be Ensures, changes can be

mademade

Maxillo - Mandibular Maxillo - Mandibular RelationsRelationsMaxillo - Mandibular Maxillo - Mandibular RelationsRelations

Centric RegistrationCentric Registration– CUD usually stableCUD usually stable– Extraoral hand Extraoral hand

position if opposing position if opposing natural dentition (less natural dentition (less obtrusive)obtrusive)

Centric RegistrationCentric Registration– CUD usually stableCUD usually stable– Extraoral hand Extraoral hand

position if opposing position if opposing natural dentition (less natural dentition (less obtrusive)obtrusive)

Setting Anterior TeethSetting Anterior TeethSetting Anterior TeethSetting Anterior Teeth

More difficultMore difficult– Setting for esthetics may Setting for esthetics may

produce excessive overbite produce excessive overbite with natural teeth with natural teeth

– Decreases stabilityDecreases stability– Compromised position, Compromised position,

used to balance need for used to balance need for esthetics & functionesthetics & function

More difficultMore difficult– Setting for esthetics may Setting for esthetics may

produce excessive overbite produce excessive overbite with natural teeth with natural teeth

– Decreases stabilityDecreases stability– Compromised position, Compromised position,

used to balance need for used to balance need for esthetics & functionesthetics & function

Posterior Denture Teeth Posterior Denture Teeth Posterior Denture Teeth Posterior Denture Teeth

Requires more adjustment to Requires more adjustment to obtain stable centric contactsobtain stable centric contacts– Denture teeth will not normally Denture teeth will not normally

articulate well with natural articulate well with natural dentitiondentition

– Pinpoint contacts/inclines, etc.Pinpoint contacts/inclines, etc.

Requires more adjustment to Requires more adjustment to obtain stable centric contactsobtain stable centric contacts– Denture teeth will not normally Denture teeth will not normally

articulate well with natural articulate well with natural dentitiondentition

– Pinpoint contacts/inclines, etc.Pinpoint contacts/inclines, etc.

Tip:Tip:Tip:Tip:

Increase incisal pin 1mmIncrease incisal pin 1mm Set posterior teethSet posterior teeth Let wax hardenLet wax harden Return pin to original Return pin to original

position position Adjust occlusion until pin Adjust occlusion until pin

touches tabletouches table

Increase incisal pin 1mmIncrease incisal pin 1mm Set posterior teethSet posterior teeth Let wax hardenLet wax harden Return pin to original Return pin to original

position position Adjust occlusion until pin Adjust occlusion until pin

touches tabletouches table

Cast Metal Denture BaseCast Metal Denture BaseCast Metal Denture BaseCast Metal Denture Base

Use if denture fractures Use if denture fractures repeatedlyrepeatedly

Usual causes: Usual causes: – Heavy forces from natural Heavy forces from natural

teeth teeth – Occlusal contacts on inclines Occlusal contacts on inclines – Impingement on a bony Impingement on a bony

midline midline • flexing of the dentureflexing of the denture

Use if denture fractures Use if denture fractures repeatedlyrepeatedly

Usual causes: Usual causes: – Heavy forces from natural Heavy forces from natural

teeth teeth – Occlusal contacts on inclines Occlusal contacts on inclines – Impingement on a bony Impingement on a bony

midline midline • flexing of the dentureflexing of the denture

Denture Teeth WearDenture Teeth WearDenture Teeth WearDenture Teeth Wear

More rapid against natural teethMore rapid against natural teeth More frequent recallsMore frequent recalls Adjust occlusion to prevent Adjust occlusion to prevent

changes in stress distributionchanges in stress distribution

More rapid against natural teethMore rapid against natural teeth More frequent recallsMore frequent recalls Adjust occlusion to prevent Adjust occlusion to prevent

changes in stress distributionchanges in stress distribution

Denture Teeth Wear More RapidlyDenture Teeth Wear More RapidlyDenture Teeth Wear More RapidlyDenture Teeth Wear More Rapidly

Never use porcelain denture Never use porcelain denture teeth teeth – Severe attrition of natural teethSevere attrition of natural teeth– Prefer denture teeth to wearPrefer denture teeth to wear

Never use porcelain denture Never use porcelain denture teeth teeth – Severe attrition of natural teethSevere attrition of natural teeth– Prefer denture teeth to wearPrefer denture teeth to wear