Lecture 1-Intro and Anatomical Landmarks Flashcards
What happens in the first visit? (2 clinical & 2 lab)
Clinical: Exam & impressions Lab: Diagnostic Casts and Custom Trays
What happens in the 2nd visit? (2 clinical, 2 lab)
Clinical: Boarder Molding & Final Impression with custom trays Lab: Master Casts and Record bases
When doing the occlusal wax rim, what is the height of the maxillary rim from vestibule to rim?
22mm
When doing the occlusal wax rim, what is the height of the mandibular rim from vestibule to rim?
15-18mm
Which facial landmark can give us the occlusal plain?
Inter pupillary line
What is the purpose of a face bow? What relationship does it give us?
To mount the maxillary cast to the articulator…..relationship of the maxillary arch to the TMJ
What information do we use to mount the mandibular cast?
Centric Relation
What happens in the 3rd visit? (3 clinical, 1 lab)
Clinical: Adjust record base, take face bow, and get CR record. Lab:mount master cast using record bases
What happens in the 4th visit? (1 clinical, 1 lab)
Clinical: Esthetic try-in Lab:Remount if needed
What happens in the 5th visit? (2 clinical, 1 lab)
Clinical: Clinical Remount and delivery lab: remount
What happens in the 6th visit? (1 clinical, 1 possible lab)
Clinical: adjustment where sore spots exist…lab:remount if needed
When examining the tonsilar region, the soft palate, and the oropharynx what are the two key landmarks to evaluate for retention of the denture?
hamular notch and the tuberosities
The first sign of cancer is often a palpable _______ in the neck.
lymph node
What is a highly compressible and
displaceable soft tissue seen in the ant. residual ridge of the max. or the mand?
Denture FIBROMA
What is a massive roll of hyperplastic
tissue which extend from the ant. residual ridge to the oral vestibule in the maxilla?
EPILUS Fissuratum
The _________ is caused when an edentulous maxilla is opposed by a partially dentate mandible (anterior dentition).
Combination Syndrome
WHERE does bone resorption mainly occur in combination syndrome?
the “premaxillary” area (canine to canine)
What are the 3 consequences of combination syndrome?
1.Resorption of the pre maxilla 2.hypertrophy of the maxillary tuberosity and 3.Occlusal plane problems
If there is a widespread INFLAMMATION over the denture-bearing mucosa, it will recover quickly by removal of the denture for __-__ days or by the use of a tissue conditioning material.
2-3 days
PAPILLARY HYPERPLASIA is secondary to ill-fitting _______ dentures and is sometimes complicated by chronic ________.
maxillary….candidiasis
Therapy of papillary hyperplasia?
Topical anti fungal and possible surgery
Is papillary hyperplasia pre-cancerous?
NO
______ hyperplasia begins as a traumatic ulcer secondary to an ill-fitted denture flange.

Fibrous
Chronic irritation leads to inflammatory fibrous hyperplasia (__________).
epulis fissuratum
How long does tissue conditioning material last?
2-3 weeks (do not soak them!)
What drug do we use to Tx Chronic Candidiasis?
Clot-Rim-Azole TROCHES
How long should dentures be out of the Pt mouth EACH day?
6-8 continuous hours
Where is a common place to see Lichen Planus manifested?
buccal shelf area
Which type of Diabetes results in compromised support and impaired tolerance of complete dentures?
Type I Diabetes
What type of LESIONS are chronic ulcerations with subsequent scarring of the oral mucosa?
Pemphigoid lesions
Without physiological levels of tension in the opposing dentition and WITH non-physiologic compression of the ridge: the result is:
RRR-Residual Ridge Resorption
Maxillary RRR loss is in the _______ and ______ direction
VERTICAL and PALATAL
Mandibular RRR loss is in the _______ and oriented along the _______ shape of the mandible
vertical and cross-sectional shape of the mandible
About how much RRR is happening on the maxillary? (___mm/year)
0.1mm/year
Mandibular bone resorption is __x the amount of maxillary bone resorption
4x
_______ is Resistance to VERTICAL displacement of the denture away from the denture bearing surface during function.
RETENTION
________ is Resistance to LATERAL displacement of the denture during function.
STABILITY
________ is Resistance to vertical forces of OCCLUSION. Factors of the bearing surface that resist or absorb occlusal loads during function.
SUPPORT
The more ________ attached mucosa available on the denture bearing surfaces, the better the support.
keratinized
What is the impact of Residual Ridge Resorption on retention, stability, and support?
All three are negatively impacted.
What are the three ways we can prevent or mahhginally disrupt resorption?
1.well adapted dentures w/ correct occlusion 2.retention of residual tooth roots in key locations 3.use of IMPLANTS
What are the two material choices we can use to take preliminary impressions?
1.Modeling Compound 2.Alginate
What color modeling compound is used for taking edentulous impressions?
RED
______- folds of mucous membrane and do not contain significant muscle fibers. ______ attachments (closer to the crest of the ridge) will compromise denture retention and may require surgical excision.
Frenum..HIGH
Labial _______ - when it is properly filled with the denture flange greatly enhances stability and retention.
vestibule
_________ - This bony eminence provides denture support, prevents a denture from rotating and improves denture stability.
Canine eminence
________ - Is a pad of fibrous connective tissue overlying the orifice of the nasopalatine canal. Pressure in this area will cause a disruption of blood flow and impingement on the nerve, causing the patient to complain of pain or a burning sensation. The denture should be relieved over this area.
Incisive papilla
_______ - is an important primary denture support area. It also provides resistance to HORIZONTAL movements of the denture.
TUBEROSITY
Posterior _____ ______ area - distal to the junction of the hard and soft palate at the vibrating line.
palatal seal
______ - raised areas of dense connective tissue in the anterior 1/3 of the palate. This area resists ANTERIOR displacement of the denture and is a SECONDARY support area.
RUGAE
CRITICAL_______ - this narrow cleft extends from the tuberosity to the pterygoid muscles. The pterygomandibular ligament attaches to the pterygoid _____ which is a thin curved process at the terminal end of the medial pterygoid plate of the sphenoid bone.
Hauler Notch…hamulus
_________ - the patient is instructed to open wide, protrude and go into lateral movements. The width of the distobuccal flange will then be contoured by the anterior border of this.
Coronoid process
________ – two small pits or depressions in the posterior aspect of the palate, one on each side of the midline, at or near the attachment of the soft palate to the hard palate and slightly posterior to the termination of the denture.
Fovea palatina
____________ - located in the posterior third of the hard palate the tissue is very glandular and displaceable. The impression surface may appear irregular as the glandular secretions displace the impression material.
Minor salivary glands
Ideal Maxillary Ridge- “_____” arch and the palate is “__” shaped in cross section
square arch…U shaped (not V!)
_________ - limited inferiorly by the MENTALIS muscle, internally by the residual ridge and labially by the lip.
Labial vestibule
________ - elevates the skin of the chin and turns the lower lip outward. Dictates the length and thickness of the labial flange extension of the lower denture.
MENTALIS muscle
**_______ - is a SECONDARY support area. High rate of resorption when excessive pressure is applied to this area.
Alveolar ridge
**________- bordered externally by the external oblique line and internally by the slope of the residual ridge. This region is a PRIMARYYYYYYY stress bearing area in the mandibular arch.*
BUCCAL SHELF
The ________ line and the crest of the ________ form the boundaries of the buccal shelf
external oblique….alveolar ridge
Access to the BUCCAL SHELF is determined by the attachment of the _______ muscle.
buccinator!
**One constant, relatively unchanging structure on the mandibular denture bearing surface is the pear shaped _________ …A PRIMARY SUPPORT AREA!!!!*
Retromolar PAD
The bone beneath this pear shaped landmark does not resorb secondary to the pressure associated with denture use!!!
RETROMOLAR PAD
WHAT ARE THE 3 MAIN Mandibular Support areas? Which is MOST susceptible to bone resorption?
1.Retromolar Pad 2.Buccal Shelf 3.Alveolar process…the alveolar process…DUH!
________- a ridge of dense bone from the mental foramen, coursing superiorly and distally to become continuous with the anterior region of the ramus. This line is the attachment site of the buccinator muscle and an anatomic guide for the lateral termination of the buccal flange of the mandibular denture.
external oblique line
___________ the anterior exit of the mandibular canal and the inferior alveolar nerve. In cases of severe residual ridge resorption, the foramen occupies a more superior position and the denture base must be relieved to prevent nerve compression and pain.
MENTAL FORAMEN
_________ - the action of the masseter muscle reflects the buccinator muscle in a superior and medial direction. The distobuccal flange of the denture should be contoured to allow freedom for this action otherwise the denture will be displaced or the patient will experience soreness in this area.
Masseter Groove
____________ - present on the anterior surface of the mandible and serve as the attachment sites of the genioglossus and geniohyoid muscles. In patients with severe ridge resorption the geniotubercles may cause discomfort if they are exposed to
the denture base.
Geniotubercle (Mental Spines)
_________ - overlies the genioglossus muscle, which takes origin from the superior genial spine.
Lingual frenum
_________ - formed by the superior surface of the sublingual glands and the ducts of the submandibular glands.
Sublingual Folds
_________ Function in elevation of the hyoid bone and the larynx and depression of the mandible.
Suprahyoid Muscles
________ muscle - forms the muscular floor of the mouth. Arises from the mylohyoid ridge of the mandible. *****Determines the lingual flange extension of the denture.
Mylohyoid muscle
On the mandible….Palpate the ______ ridge to determine its contour, sharpness and degree of undercut!!
mylohyoid
The ________ (lies at the distal end of the alveolingual sulcus) is very important for denture stability and retention on the mandible*
retromylohyoid space
How long do you wait to separate your cast from your impressions?
45min-1hour
