Alteration in shape (CROWN):

Fusion commonly seen in _____ _______ – usually the _____ _______

(a)  

Alteration in shape (CROWN):

Divisions of single tooth germ by invagination

Resulting to 2 completely or incompletely

separated crowns with 1 root

(a)  

Alteration in shape (CROWN):

Gemination other name

(a)  

Alteration in shape (CROWN):

- Bull-like teeth

- Rectangular pulp chamber shape

- No cervical constriction

- Associated syndrome: Trisomy 21,

Klinefelter’s syndrome

(a)  

Alteration in shape (CROWN):

Overdevelopment or

overinvagination of enamel

organ

has extra cusp

common in upper permanent laterals

(a)  

Alteration in shape (CROWN):

Also known as Dens Evaginatus or Leong’s

pre molar

There is overgrowth or invagination of its

enamel organ

Take caution on trimming the leong’s cusp

because involuntary pulp exposure

It can be unilateral or bi-lateral (Common)

(a)  

Alteration in shape (CROWN):

Also called as notched incisors

Type of enamel hypoplasia

Caused by: syphilis from infected

pregnant mother

(a)  

Alteration in shape (CROWN):

What is the causative agent of syphilis?

(a)  

Alteration in shape (CROWN):

Cusp is full of globules or glomerated

mass of globule

Also known as “Moon’s Molars”

Caused by: syphilis from infected

pregnant mother

(a)  

Alteration in shape (Root):

Secondary union of fully formed teeth

Roots are fused at the cementum area

Common in 2nd and 3rd molar

(a)  

Alteration in shape (Root):

Also called as “Enameloma”

Caused by Hertwig's epithelial root sheath

where it form an enamel in the furcation of

the tooth

Common in Maxillary molars

(a)  

Alteration in shape (Root):

Also called as “Hawk-billed tooth”

X-ray is required

90 degrees

Angulation of the long axis of the tooth

Caused by: trauma of continuity of the

Hertwig’s epithelial root sheath

(a)  

Alteration in shape (Root):

It similar with dilaceration but it is less than 90

degrees

Caused by trauma

(a)  

Alteration in shape (Root):

Cementum is fused with the alveolar bone

Tooth cannot erupt properly

No periodontal ligament space

Common in lower primary 2nd molars

Caused by: trauma, infection that destroyed

the periodontal ligament

(a)  

Alteration in shape (Root):

Also called “Cementum hyperplasia”

Excessive formation of cementum

4 Causes:

1. Accelerated elongation of

tooth (Pagbaba ng ngipin)

2. Inflammation (cementum

trying to heal but instead it

overgrow)

3. Tooth repair (over stimulation

of cementum)

4. Paget’s disease or osteitis

deformans (this cause

excessive stimulation of

secondary cementum)

(a)