raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:99789

Dentin dysplasia type I

Synonyms: DD-I · DTDP1 · Radicular dentin dysplasia

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Childhood
Status
active

Dentin dysplasia type I (DD-I) is a rare form of dentin dysplasia (DD) characterized by sharp conical short roots or rootless teeth.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enDentin dysplasia type IDD-I · DTDP1 · Radicular dentin dysplasia
frDysplasie de la dentine type 1DD-I · DTDP1 · Dysplasie dentinaire radiculaire · Dysplasie radiculaire de la dentine
deDentindysplasie Typ 1DD-I · DTDP1 · Dentindysplasie, radikuläre
esDisplasia de dentina tipo 1
itDisplasia della dentina, tipo IDD-I · DTDP1 · Displasia radicolare della dentina
nlDentinedysplasie type IDD-I · DTDP1 · Radiculaire dentinedysplasie
ptDisplasia da dentina, tipo I
plDysplazja zębiny typu IDD-I · DTDP1 · Dysplazja zębiny korzeni
csDentinová dysplázie, typ IDD-I · DTDP1 · Radikulární dentinová dysplázie
ukДисплазія дентину, тип IDD-І · DTDP1 · Радикулярна дисплазія дентину
zh牙本质发育异常1型根部牙本质发育不良
trDentin displazisi tip IDD-I · DTDP1 · Radiküler dentin displazisi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM621440BTNTvalidated
OMIM621559BTNTvalidated
ICD-10K00.5NTBTattributedvalidated
ICD-11LA30.7NTBTindexvalidated
MONDO0007436Evalidated
MeSHC538215Evalidated
UMLSC0399379Evalidated
GARD1807Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
VPS4BDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:10895ENSG0000011954160998318q21.33vacuolar protein sorting 4 homolog B27247351[PMID]
SSUH2Disease-causing germline mutation(s) inAssessedHGNC:24809ENSG000001250466174793p25.3ssu-2 homolog27680507[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0001 / 100 000EuropeValue and classValidated17452557[PMID]_[EXPERT]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card