Week 1 Hard & soft tissue anatomy Flashcards
Describe the Maxilla?
It contain Maxillary teeth, symmetrical bones, occupies the middle third of the facial skeleton.
Also contributes to the skeletol of the nose, orbut, cheek, palate
What is the composition of the Maxilla?
Hollow body that encloses maxillary sinus/antrum, shaped like a pyramid lying on it’s side
Describe the Mandible
It’s the largest and strongest facial bone.
The mandible forms the lower jaw, and occupies the lower third of the facial skeleton, it’s the bone into which LWR teeth are attached.
What is the composition of the mandible?
Composed of two components - Body & Ramus
Describe the Body of the Mandible
Body is curved like a horse shoe
Encompases the Alveolar Process which is created by a thick buccal and thin lungual plate of bone.
Describe the Ramus of the Mandible
Ramus there are two vertical Rami, projects upwards, one from each posterior end of the body.
Meet the body of the mandible at the angle of the mandible
Where is the retromolar fat pad located?
Towards the posterior of the mandiublar arch, after the last molar.
Where is the Maxillary Tuberosity located?
Towards the posterior of the maxillary arch, the gum behind the last molar.
What is the alveolar process?
The alveolar process contains the socket which teeth are held in by periodontal ligament.
What are components of tooth anatomy?
- Crown
- Neck
- Root
- Pulp cavity
- Enamel
- Dentin
- Gingiva
- Gingical sulcus
- Cementum
- Periodontal ligament
- Root canal
- Alveolar bone
- Apical foramen
- Brances of alveolar vessels and nerve
What is the inside of the mouth know as ?
The oral cavity Proper
Define Oral Cavity Proper
The space enclosed anteriorly by the maxillary and mandibular arches.
Posteriorly, the opening from the oral cavity proper into the pharynx or throat in the fauces
Describe the lips function
Entrance to the ‘oral cavity proper’
Internally covered by muscous membrane
What should a normal Labial Mucosa and Buccal Mucosa look like?
Continuous pink-red colour, firm in texture and moist.
Pigment n relation to patients skin
What can happen if lips are ‘not competent’?
- Poor swallowing
- breathing
- teeth alignment
- speech
*
- speech
Describe the Vestibule
The space between the lips and cheeks, and the teeth and alveolar.
Continuation of mucosa covering the alveolar to the lips and cheek create a culcas called the vestibule.
The sulcas can be interrupted by folds of mucosa called the fernum.
How many and where are the Oral Vestibules located?
2,
Maxillary labial Frenum
Mandibular Labial Frenum
What is the Labial Mucosa and Buccal Mucosa
Lines the inside of the mouth.
Consists of epithelium and connective tissue
Gingiva can first be divided into 3 sections, name them
Alveolar mucosa
Mucogingival junction
Attached gingiva
In depth can you identify more layer of gingiva?
Alveolar mucosa
Mucogingival junction
Attached gingia
Marginal gingiva
Interdental gingia (papilla)
Sulcus (inside)
Describe the Palate
Where can you locate Incisive Papilla?
It’s present at the beginning of the hard palate behind the central incisors.
What is directly posterior to this papilla?
Directly posterior to this papilla are palatine rugae, which are firm, irregular ridges of tissue.
What is the tongue?
Is a muscle, to assist in swallowing, eating, speech and taste, papilla help us with these function
