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Newpa'entexamina'on

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Calcifica'on

Beginsat

Forma'on

Completeat

Erup'on

Maxillary

Erup'on

Mandibular

Exfolia'on

Maxillary

Exfolia'on

Mandibular

Central

incisors

4thfetal

month

1824

months

610

months

58

months

78years 67years

Lateral

Incisors

4thfetal

month

1824

months

812

months

710

months

89years 78years

Canines 4thfetal

month

3039

months

1620

months

1620

months

1112

years

911

years

First

Molars

4thfetal

month

2430

months

1118

months

1118

months

911

years

1012

years

SecondMolars

4thfetalmonth

36months 2030months

2030months

912years

1113years

PrimaryDen''onDevelopmentAAPDDentalGrowthandDevelopmentGuidelines2010

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PrimaryDen''on

MostfavourablepaQernoferup'on ABDCE Sequenceismoreimportantthan'ming Timeoferup'ontocompleteroot

developmentis18months

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Calcifica'on

Beginsat

Crown(Enamel)

Forma'on

Completeat

RootsComplete

at

Erup'on

Maxillary

Erup'on

Mandibular

CentralIncisors 3-4months 4-5years 910years 78years 67years

LateralIncisors Max1012months

Md34months

45years 11years 89years 78years

Canines 45years 67years 10years 1112years 911years

FirstPremolars 1824months 56years 1215years 1011years 1012years

SecondPremolars 2430months 67years 1213years 10-12years 1113years

FirstMolars Birth 3036months 1214years 5.57years 5.57years

SecondMolars 30-36months 78years 910years 1214years 1214years

ThirdMolars Max79years

Md8-10years

45years 1416years 1730years 1730years

PermanentDen''onDevelopmentAAPDDentalGrowthandDevelopmentGuidelines2010

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Bitewingradiographs

Fordetec'onandmonitoringofinterproximalcaries.Proximitytothepulpofcariesorrestora'ons.Primarymolarfurca'on

pathology.

Frequencyisbaseduponcariesriskassessment.

BUTNOLESSTHANONCEEVERY24MONTHS

www.aapd.otg/media/policies_guidelines/E_Radiographs.pdf

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Periapicalradiographs

Usedtoiden'fypathosis,toevaluatedevelopment,traumaordeepcariouslesions

Anteriorsandincidenceofsupernumeraries?Jus'fiedornot?

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Panoramicradiographs

Toassessdevelopment,pathology,traumaNOTUSEDTODIAGNOSECARIES

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Traumaandradiographs

Ini'alfilmasbaseline 34weeksposttraumatoassessperiapical

pathology 68weeksposttraumatoassessroot

resorp'on

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PrematureTeeth

Erupted

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Condi'onsConfusedwithPrimary

Teeth BohnsNodulesmucousgland'ssuefound

tothebuccalandlingualofmaxillaryalveolar

ridge DentalLaminaCystremnantsofthedental

laminafoundonthecrestofthealveolarridge

EpsteinsPearlstrappedepithelialremnantsfoundatthemidpalatalraphe.

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DelayedErup'on

Trauma Impac'on Ankylosis Supernumeraries Pathology

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EctopicErup'onofPermanentMolars

Incidenceofmaxillaryfirstpermanentmolars 23% Rareinthemandibulararch Selfcorrec'on66% (rarelyselfcorrectsajertheageof7)

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Fusion

Usuallyhave2rootsandadoublepulpspacebutthisisvariable

Ojenassociatedwithmissingpermanentsuccessors

Resultsinadecreasednumberofteethinthearch.

Nottobeconfusedwithgemina'on YuenSetal.Doubleprimaryteethandtheirrela'onshipwiththeirpermanent

successors:aradiographicstudyof376cases.PediatrDent1987;9:42-48.

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Gemina'on

twinningteethhave2crownsand1root.

Asingledentalfollicle,splitbeginsatincisal

edge,butstopsbefore

cleavageiscomplete.

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Hypophosphatasia

inheritedmetabolicdisorder affectsthemineraliza'onofboneandteeth lowac'vityofserumandbonealkaline

phosphatase

Oneoftheveryfirstexpressionsofthedisordermaybetheprematurelossofprimary

teeth

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Impe'go

StreptococcalorStaphylococcalinfec'on Secondarytotrauma Startasblistersfilledwithpusandthencrust

over

TreatwithBactroban(Mupirocin)

MethicillinresistantStaphaureusisbecomingaproblem

Shouldclearwithin2weekswithtreatment.

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Maxillarycentraldiastema

4497%of6yearolds 3346%of9yearolds 720%of14yearoldsthereforeWAITTOTREAT E'ologiesNormaldevelopment

LowlingualfrenalaQachment

Excessiveskeletalgrowth

Insufficienttoothstructure

Habitie.ThunmbMidlinepathologyie.Mesiodens

Ar'ficial(rapidpalatalexpansion)

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Habits

Pacifierssoothers,binkies,dummies,soosooorthodon'c

soothers

Thumbsanddigits blankets

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Pacifier

Firstmonthoflifenopacifier 212monthspacifierusemay

protectfromSIDS

>12monthsmayleadtoahigherriskofo''smedia

Bewareofpacifiersdippedinhoney!

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Grinding

AnatomicallyprimaryteethandtheTMJareflaQertoaccommodateforgrowthwhichleadstogrindingin

somekids.

Donotknowwhysomekidsgrindandothersdonot.

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