Maxilla PDF

The Maxilla Oral and Dental Sciences 2 GDC Learning Outcomes 1.1.5 Describe relevant and appropriate dental, oral, craniofacial and general anatomy and explain their applica8on to pa8ent management 3 Intended learning outcomes By the end...

The Maxilla Oral and Dental Sciences 2 GDC Learning Outcomes 1.1.5 Describe relevant and appropriate dental, oral, craniofacial and general anatomy and explain their applica8on to pa8ent management 3 Intended learning outcomes By the end of this session, you will be able to:  Describe the main features of the maxilla  List the main parts of the maxilla  List the ar8cula8ons of the maxilla  Describe the processes and surfaces of the maxilla  Describe a cle; lip and palate and its implica8ons. 4 Maxillae (paired)  The Maxilla (upper Jaw) is made up of two maxillary bones joined together Image TMD Occlusion Tools Feb 2021 5 Maxilla Makes up:  Greater part of upper facial skeleton  Helps form the face, infratemporal region, orbital Noor, lateral wall of nasal cavity, and roof of oral cavity Image Lecturio Website Feb 2021 6 ArJculaJons of the Maxilla ArJculaJons of the Maxilla (frontal & base view) B E E Opposite maxilla (side by side) A D  A – Nasal Bone C C  B- Frontal bone  C – Zygoma8c bone  D – Vomer  E – Pala8ne bone Image ENT360 Website Feb 2021 Image ENT360 Website Feb 2021 8 Maxilla arJculaJons Internal ar8cula8ons:  Lacrimal bone  Ethmoid bone Image Google Feb 2021  Inferior concha Image Getbodysmart Feb 2021 9 Maxilla arJculaJons ArJculaJon with mandible  Maxillary teeth ar8culate with the teeth of the mandible through the Temporomandibular joint Image Purpose games Tools Feb 2021 10 Maxillary Processes and Surfaces Maxillary Processes Features:  4 Processes  4 Surfaces  Foramina Image Anatomy Standard Feb 2021 12 Maxillary Processes Alveolar Process  Forms the sockets and suppor8ng bone for the maxillary teeth  The alveolar processes of both maxillae form the upper dental arch  Why is this relevant to dental professionals? Refer to bone lecture Image Wikipedia Feb 2021 13 Alveolar Process of Maxilla Image Google Feb 2021 14 Alveolar process of Maxilla Image Anatomy Standard Website Feb 2021 15 ZygomaJc process of maxilla ZygomaJc process (ZP) ZP ZP  Is on the lateral aspect and is the bu^ressing contribu8on to the zygoma8c arch  Ar8culates with the zygoma Image Anatomy Standard Website Feb 2021 16 Frontal process of Maxilla (FP)  A bar of bone that projects upward from the anterosuperior aspect to contact the frontal bone  Ar8culates with the frontal bone, nasal bone & lacrimal bone Image Anatomy Standard Website Feb 2021 17 PalaJne process of Maxilla  A horizontal shelf projec8ng from the medial aspect the maxilla towards the midline and its opposite counterpart  Forms the roof of oral cavity and Noor of the nasal cavity Image Anatomy Standard Website Feb 2021 18 Features of the maxillary bones 1 1 Facial view  1 - Frontal process 2 2 3 3  2 - Infra-orbital foramen 4 4  3 - Zygoma8c process 5 5  4 - Anterior nasal spine  5 - Canine eminence Image Anatomy Standard Website Feb 2021 19 Features of the maxillary bones  1 - Frontal process Lateral view 1  2 - Infra-orbital foramen 5  3 – Anterior nasal spine 6  4 – Alveolar margin 2 7 3  5 – Orbital surface 4  6 – Zygoma8c process  7 – Maxillary bone 20 Features of the maxillary bones Palatal (inferior) view  Incisive foramen (fossa)  Pala8ne process Image Anatomy Standard Website Feb 2021 21 Features of the 1 maxillary bones Medial view: 2  Frontal process (1)  Maxillary sinus (2) 4 3  Pala8ne process (3)  Alveolar process (4) Image Anatomy Standard Website Feb 2021 22 Maxillary surfaces Orbital surface Orbital Surface  Forms the Noor of the orbit Image Anatomy Standard Feb 2021 23 Features of the maxillary bones Maxillary sinus  Large air space – one in each maxillary bone  Extends anteriorly to the facial surface, laterally to the zygoma8c process, posteriorly to the infratemporal wall & inferiorly down to the alveolar process  Closely related to the roots of the maxillary molars Image Amboss Website Feb 2021 *Please refer to Paranasal sinuses lecture* 24 Image Dental Protec8on Feb 2021 Image Quora accessed March 2021 25 Surfaces of Maxilla Facial, nasal, orbital, infratemporal Maxillary surfaces Facial (anterior surface) - helps form the upper face Image Anatomy Standard Website Feb 2021 Image TMD Occlusion Tools Feb 2021 27 Maxillary surfaces Maxillary Nasal Sinus  (medial) surface - forms the bulk of the lateral wall of the nasal cavity Image Anatomy Standard Website Feb 2021 28 Maxillary surfaces Orbital surface  Forms the Noor of the orbit Image Anatomy Standard Feb 2021 29 Maxillary surfaces Infratemporal (posterior surface) Forms the wall of the infratemporal region Image Anatomy Standard Feb 2021 30 AbnormaliJes of the Maxilla Cle[ Palate  Occurs during development of the palate.  The 2 halves of the palate do not fuse properly.  May be associated with a cle; lip.  A cle; lip and palate is the most common facial birth defect in the UK, afec8ng around 1 in every 700 babies.  Modern surgery produces excellent aesthe8c and func8onal results.  A cle; lip is surgically revised in the Image NHS Website Feb 2021 grst few months of life. 32 Cle[ Lip  A cle; lip may just afect one side of the lip or there may be 2 cle;s.  It can range from a small notch to a wide gap that reaches the nose. Image Google Feb 2021 33 Cle[ Palate  A cle; palate may just be an opening at the back of the mouth, or it may be a split in the palate that runs all the way to the front of the mouth.  Some8mes it can be hidden by the lining of the roof of the mouth (the mucosa). Image Google Feb 2021 34 Di\culJes with Cle[ Palate (to be discussed in greater detail in Year 2) Di\culty feeding Hearing Problems Dental Problems Speech problems 35 Phoebe 36 37 38 39 40 Useful links Maxilla Bone LocaJon and FuncJon Anatomy Lecture for Medical Students Learning – YouTube CLAPA www.clapa.com CLEFT www.cle[.org.uk SMILE TRAIN www.smiletrain.co.uk 41 42 Thank you for listening Please email me if needed: [email protected]