Final go hard Flashcards
angles classification of ridge relationship
class 1- orthognatic/normal
Class 2- Retrognathic
Class 3- Prognathic
how do asses quality of oral mucosa
Degree of keratinization an amount of attached mucosa vs unattached mucosa
the more keratinized attached (especially mandible) the better
The arch size determines
amount of basal seat available for arch formation
interarch space
determines amount of space to accomodate denture teeth
immediate denture
any removable dental prosthesis fabricated for placement immediately following removal of natural test
frenum
folds of mucus membrane containing fibrous connective tissue
what should be considered if alveolar height is
ridge augmentation or vestibuloplasty
how long should area be allowed to heal prior to making impressions for denture fabrication
4 weeks
what is recommended for improper ridge height(flat ridges)
vestibuloplasty
what are some potential causes of papillary hyperplasia
Mechanical irritation, ill fitting dentures, poor oral hygiene, fungal infections and associated inflammation
what are the indications for lowers the floor of the mouth
resorption of the alveolar bone to the point that the genioglossus muslcles may interfere with the lingual aspect
what is the most common complication of tuberosity reduction surgery
perforation of maxillary sinus
what should be considered if alveolar height is
ridge augmentation or vestibuloplasty
how long should area be allowed to heal prior to making impressions for denture fabrication
4 weeks
what is recommended for improper ridge height(flat ridges)
vestibuloplasty
transpositional flap vestibuloplasty
type of vestibuloplasy indicated for patients with sufficient mandibular bone & adequate vestibule sulcus on lingual of mandible
can be done without a splint
what are the indications for lowers the floor of the mouth
resorption of the alveolar bone to the point that the genioglossus muslcles may interfere with the lingual aspect
torus.. mandibular or max is a
slow growing osseous formation of unknown etiology
in 20% of women
Combination syndrome
the characteristic features that occur when endentoulous maxilla comes in contact with natural teeth in mandibular ANTERIOR teeth
also called Kelly syndrome and Anterior Hyperfunction Syndrome
what are some measures used to slow or stop resorbtion of bone
- retaining root tips
2. Osteointegrated implants
how long will learning to chew with dentures take
6-8 weeks
what are the life span of dentures
5-7 yrs
what are the primary bearing areas for maxillary complete dentures
Hard palate and tuberosities
what are the secondary bearing ares for maxillary complete dentures
rugea area and residual ridge
primary bearing area of mandibular complete denture
buccal shelves and retromolar pads.
what are final impression techniques
mucostatic & selective pressure
selective pressure technique
pressure is selectively place on the periphral borders and the unrelieved sections of the maxillary tray…. where tray.is relieved in secondary bearing areas the tissue are recorded in their resting
what mucostatic impression technique does udm utilize
mucostatic impressions technique
Final impression appointment
instruct the patient to leave their dentures 48 to 72 hrs prior
masseteric Notch
depression created on the distobuccal area of an impression by the action or function of the masseter muscle located distal to the buccinator muscle.
when assessing denture
retention stability vertical Dimension of occlusion centric relation Esthetics
Maxillary rim
22 mm measured from the highest point of the sulcus adjacent to the labial frenum to the occlusal surface.
Mandibular rim
18mm from deepest point of sulcus adjacent to labial frenum
Kelly’s theory predicts that negative pressure in maxillary denture does what
pull the tuberosity down while maxillary driven upward by anterior occlusion
frenectomy
Preprosthetic surgery indicated for Crestal granular attachments .
true or false
type 1 diabetes causes thinning of epithelium and more keratinized
false
it is thinner and LESS keratinized
what are the things to look for in anterior tooth selection
tooth and gingiva shade
tooth size: tooth length , tooth width
tooth mold form
what is the general rule on tooth size for the six maxillary anteriors?
they are relatively small if less than 48mm
large if more than 52mm
what is the Biometric ratio
1:16
the ratio used for tooth size selection stating
The Teeth are 1/16 the size of the face in length and width
the golden proportion
Has value 1.681
a proportion that desribes the view of the frontal plane
BASICALLY: central incisors are 1.681 times wider than later incisor from frontal view and so on
dentogenics concept
selection of teeth esthetics governed by the age sex and the personality of the patient
what is the high lip line
the length of the central incisor
poor saliva effects which arch the most
Mandible
poor saliva causes what
increase friction at denture mucosa interface
most frequent complication of tuberosity reduction
perforation of Maxillary sinus
mandibular primary bearing areas
buccal shelf
retro molar pad
which denture rim do u adjust 1st
maxillary
the Maxillary rim should be how high?
22mm
the mandibular rim should b how hight
18mm
the average distance between the max and manned sulcus is
40mm
the inncisal level should be how far below the lip line
1-2mm
the swelling threshold is used to find
VDO
if patient has inadequate occlusal space the ace
excessive VDO
If patient has excessive IRS then they have
inadequate VDO
how does maxilla resorb
superior and posteriorly
what is ideal palatal shape for maxillary denture
tall ridge with flattened palate
