Sutures

Question 1

• _____: Fibrous joints formed between bones via short fibers of ____ CT
• _____: Prevent movement

Answer 1

• Sutures

- Synarthrotic

Question 2

-The \_\_\_\_\_ suture is often affected in Syndromic Craniosynostosis
Sutures:
-\_\_\_\_\_
-\_\_\_\_\_
-\_\_\_\_\_
-\_\_\_\_\_
-\_\_\_\_\_

Answer 2

-Coronal
Sutures:
-Coronal
-Metopic
-Sagittal
-Squamosal
-Lambdoidal

Question 3

Circummaxilary Sutures Involved in the Growth of the Nasomaxillary Complex
F.L.I.N.E.Z. :
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_
Z.P. :
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_

Answer 3

• Frontomaxillary
• Lacromaxillary
• Intermaxillary
• Nasomaxillary
• Ethmomaxillary
• Zygomaticomaxillary
• Zygomaticotemporal
• Pterygopalatine

Question 4

Sutures for the Downward & Forward Displacement Growth of the Maxilla:

• _______
• _______
• _______
• _______

Answer 4

• Zygomaticomaxillary
• Zygomaticotemporal
• Frontonasal
• Pterygopalatine

Question 5

Sutures & Aging

• With aging sutures become more ____ by _______ of the opposing bony margins and ultimately ____ across the suture
• ___ ____: Starts to close after the first year and gets obliterated by the broadening of the forehead at 7 years of age
• Most ______ Sutures fuse between 25-30
• Most ______ Sutures remain patent until 70-80
• _____ ____: Fuses between: 30-305, which is helpful for widening the palate

Answer 5

• Rigid; inter-digitation; fusion
• Metopic Suture
• Calvarial
• Facial
• Intermaxillary Suture

Question 6

• Sutures grow via _______ ossification
• Lack ____ growth potential, and are dependent on _______ signals
• Major growth ______ in the skull

Answer 6

• Intramembranous
• Intrinsic; external
• Site

Question 7

Molecular Pathways in Cranial Suture Formation

• _____: Expressed on the bone surface and stimulates activation of Runx2 which turns on Osteogenic differentiation
• _____: Expressed on the _____ front and stimulate Osteogenic cell proliferation
• ____: Inhibits FGFR expression to maintain undifferentiated state in the suture mesenchymal cells

Answer 7

• FGFR1
• FGFR2; Osteogenic
• Twist

Question 8

Palatal Sutures

• ______ ____ _____: Separates the Palatine Processes from the Maxilla
• ____ ____
• _____ ____ ____: Posterior cross bites occur due to the premature fusion of the _____ ______ Suture that is easier to ______ when young, around 7-8

Answer 8

• Transverse Palatine Suture
• Incisive Suture
• Median Palatine Suture; Median Palatine; separate

Question 9

• ______ ____: Achieved by separation of median palatine suture and subsequent bone formation in the gap
• ____ _____ ___ ____ ___(___): Done to adults due to the pre-fusion of the Median Palatine Suture

Answer 9

• Palatal Expansion

- Surgically Assisted Rapid Palatal Expansion (SARP)

Question 10

• _____: A joint that connects the teeth to bony sockets in the maxillary and mandibular alveolar bone, only present in the ______
• ______ ____: Dense CT that connects the cementum of the root to the alveolar bone
• Absorbs _____
• Allows for minimal tooth _______
• Necessary for ________ tooth movement
• Allows for tooth _______, and the ______ growth of the Alveolar Bone
• ______ ______: Loss of Periodontal Ligament preventing tooth eruption

Answer 10

• Gomphosis; Skull
• Periodontal Ligament
• Shock
• Movement
• Orthodontic
• Eruption; Vertical
• Tooth Ankylosis

Question 11

Orthodontic Tooth Movement

-_______ site creates inflammation and bone ______ via Osteoclasts, moving the bone in that direction

Answer 11

-Compression; resorption

Question 12

Cleidocranial Dysplasia

• _______ loss of primary teeth
• ______/_______ eruption of ______ teeth
• Multiple _____ teeth
• ______ deficiency
• Deficient _______ bone height
• _______ open bite

Answer 12

• Delayed
• Delayed/Failed; permanent
• Supernumerary
• Midfacial
• Alveolar
• Anterior