resorption Flashcards
MOA in resorption
osteoclasts/cementoclasts/dentinoclasts destroy mineralized structures, create acidic environment, enzymes digest oragnic matrix
common etiologies of tooth resorption
chronically inflamed or necrotic pulps
replanted or transplanted teeth (trauma)
excessive traumatic forces (ortho, trauma)
orthodontic tooth movement
embedded teeth
teeth adjacent to tumors and cysts
idiopathic
t/f: minor resorptions are common an are found on basically all teeth
true on the roots
most normal external resorption (of dentin) in root canal and on peripheral portion of root is replaced by ___
cementum
small superficial defects in the cementum and underlying dentin that undergo repair by deposition of new cementum
surface resorption
minor surface resorption location, cause
usually self limiting
most often periodically but not visible on radiographs
common after ortho mvmt/trauma
internal or external pathologic loss of tooth structure and possibly bone, resulting in a defect, occurs as a result of microbial infection; characterized radiographically by radiolucent areas along the root
inflammatory resorption
internal resorption originates from
cells of the pulp (caused by inflammation of the pulp)
in internal resorption, what is usually status of pulp
vital (but can become necrotic if resorption penetrates externally)
how does internal resorption appear on xray
symmetrical ballooning within the canal that does not “move” relative to root canal/pulp chamber on angled films
how to treat internal resorption
RCT to try to stop process
where does external resorption intiate
periodontium (cells of PDL) and/or result of necrotic pulp
etiology of external resorption
trauma
decay/necrosis
does external resorption move on films
yes
tx for external resorption
RCT with CaOH2 to help cells of PDL
also referred to as sub epithelial external resorption
cervical resorption
tooth with a pink hue might have
cervical resorption
cervical resorption pulp status
usually vital
etiology of cervical resorption
ortho, bleaching, herpes, genetics, cats, systemic disease
management of cervical resorption
get good images
microscope needed
surgical access to area
remove affect tooth structure, if pulp involved to RCT
restore affected area
replacement resorption definiton
ankylosis
pathologic loss of cementum, dentin, PDL with subsequent replacement of such structures resulting in fusion of bone and tooth
transient apical breakdown definiton
response to tooth luxation consisting of radiographic apical bone root resorption that resolves spontaneously without treatment
do you need to treat transient apical breakdown
no
