Hubble Asteroid Hunter III. Physical properties of newly found asteroids
Growth of maxilla
1. Growth of Maxilla
Department of orthodontics and dentofacial orthopedics
Presented by :
Sushant Pandey
Resource faculties :
Dr. Prabhat Ranjan Pokhrel
Dr. Rajesh Gyawali
Dr. Jamal Giri
Dr. Mona Pokhrel
5. Anatomy of maxilla
BODY - pyramidal in shape.
FOUR PROCESSES. Frontal, Zygomatic, Alveolar, Palatine
Maxilla houses the largest sinus of the face, the maxillary sinus
6. Development of maxilla
By 4th and 5th week of IUL, pharyngeal arches develop. 1st arch
(mandibular arch) contributes to development of maxilla.
Neural crest cells form the skeletal components of face.
10. Center of Ossification of maxilla
• Develops in the mesenchyme of the maxillary
process.
• Intramembranous ossification.
• One center of ossification
• Lies above that part of the dental lamina from
which the enamel organ of the canine develops.
11. Development of palate
Intermaxillary segment is formed by the fusion of two medial nasal
prominence. Forms primary palate.
Palatal shelves are derived from maxillary process. Form secondary
palate.
20. 3. Surface remodeling
Maxillary tuberosity
•Deposition along the posterior surface
Cause lengthening of the arch and increases A-P diameter of the maxilla
23. 3. Surface remodeling
Remodeling of orbit
•Orbit follows ‘V’ principle
of growth.
•Most of the roof and the
floor are depository.
•Maximum remodelling of
roof till 7 years of age.
26. 3. Surface remodeling
Alveolar process remodeling
•Develops with eruption of teeth
Increases the maxillary height and palatal depth.
27. 3. Surface remodeling
Zygomatic arch: Relocated posteriorly &
laterally
Resorption on the medial side
Deposition on the lateral side.
Increases the width of maxilla.
28. 3. Surface remodeling
Maxillary sinus
All walls of maxillary sinus except
the mesial wall undergoes
resorption: Sinus enlarges.
31. Summary
Change in height = palatal remodeling, eruption of teeth,
displacement
Change in width = midpalatine suture, remodeling at lateral
surface of alveolar process
Change in length (A-P) = maxillary tuberosity, displacement
32. References:
1. Orthodontics the art and science S.I. Bhalaji, 6th edition
2. Growth and remodeling of the human maxilla DONALD H.
ENLOW, and SEOSG BANG
3. Contemporary orthodontics, William R. Proffit 4th edition
4. Textbook of Craniofacial Growth, Sridhar Premkumar
5. Langman’s medical embryology, 12th edition