Periodontium Word Scramble

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Question	Answer
Structures of the periodontium	gingiva, PDL, root cementum, alveolar bone
functions of periodontium	seal around cervical portion of tooth
Functions of periodontium	holds tissue against tooth during mastication
Funtions of periodontium	suspends and maintains tooth in socket
Functions of periodontium	protects underlying dentin(cementum)
Functions of periodontium	surrounds and supports the roots of the tooth(alveolar bone)
Gingiva	covers cervical portios of teeth and alveolar processes of jaws
composed of thin outer layer of epithelium and underlying core of connective tissue	Gingiva
Function of gingiva	provides a tissue seal around cervical portios of teeth and covers alceolar processes of jaws
Free gingiva	unattached portion of gingiva surrounds tooth in CEJ region
Free Gingiva	surrounds tooth like turtleneck
meets tooth in a thin rounded edge called gingival margin	Gingival margin
Gingival sulcus	space between free gingiva and tooth surface
Gingival sulcus inner boundary	formed by the tooth surface
outer boundary of gingival sulcus	formed by epithelial tissue of free gingiva
attached gingiva	gingiva tightly connected to cementum on cervical-third of root and to periosteum of alveolar bone
location of attached gingiva	between free gingiva and alveolar mucosa
width of attached gingiva is not measured on	the palate
Texture of attached gingiva	stippled
connective fibers that cause stippling	rete pegs
attached gingiva	able to withstand mechanical forces of mastication
prevents free gingiva from being pulled away from tooth when tension is applied to alveolar mucosa	attached gingiva
interdental gingiva	portion of gingiva that fills area between two adjacent teeth apical to contact area
consists of 2 interdental papillae(facial/lingual)	interdental gingiva
formed by free gingiva from adjacent teeth	lateral borders and tip of interdental papilla
formed by attached gingiva	center portion of interdental papilla
col	valley-like depression in portion of interdental gingiva and lies directly apical to contact area
not present if adjacent teeth are not in contact or if gingiva has receded	col
prevents food from becoming packed between teeth during mastication	Interdental gingiva
coronal boundary	gingival margin
apical boundary of gingiva	alveolar mucosa
free gingival groove	shallow linear depression that separates free and attached gingiva
may be visible clinically but not obvious	free gingival groove
mucogingival junction	clinically visible boundary where pink attached gingiva meets red, shiny alveolar mucosa
PDL	layer of soft connective tissue that covers the root of tooth and attaches it to bone of tooth socket
composed mainly of fiber bundles	PDL
PDL attachment	one side to root cementum other side to alveolar bone of tooth socket
supportive function of PDL	suspends and maintains tooth in socket
Sensory function of PDL	provides sensory feeling to tooth such as pressure and pain
Nutritive function of PDL	provides nutriets to cementum and bone and itself
Formative functio of PDL	builds and maintains cementum and alveolar bone of tooth socket
Resorptive function of PDL	can remodel the alveolar bone in response to pressure such as that applied during ortho
Cementum	thin layer of hard, mineralized tissue covering surface of root
attached to dentin of root and seal off dentinal tubules	Cementum
more resistant to resorption than bone making it possible for teeth to be moved during ortho	Cementum
high resistance allows pressure applied during otho to cause resorption of alveolar bone	Cementum
does not have itsl own blood supply or nutrient supply	Cementum
no nerves and is insensitive to pain	Cementum
anchors ends of PDL to tooth	Cementum
outer layer of cementum	protects underlying dentin and seals ends of open dentinal tubles
compensates for tooth wear at occlusal or incisal surface	Cementum
formed at apical area of root to comensate for occlusal attrition	Cementum
Alveolar bone	bony projection surrounds and supports roots of teeth
AKA alveolar process	Alveolar bone
existance of alveolar bone depends on	presence of teeth
if teeth do not erupt	alveolar bone does not develop
forms the bony sockets providing support and protection for roots of teeth	alveolar bone
cortical bone	forms hard, outside wall of mandible and maxillae on facial and lingual aspects
fenestration	window like defect in cortical bone resulting in an isolated area of rooth that is not covered by bone
cause of fenestration	fistual tries to find way out-abcess
dehiscence	cleft like defect in cortical bone including bone margin
cause of dehiscence	mechanical perio disease-teeth start flaring and bone resorbs
cancellous bone	lattice like bone that fills interior portion of alveolar process
bone between cortical bone and alveolar bone proper	cancellous bone
cancellous bone	trabecular bone/spongey
alveolus	bony socket that houses the root of tooth
alveolar bone proper	thin layer of bone that lines each alveolus(dense bone)
identified as lamina dura in radiographs	alveolar bone proper
contains numerous holes that allow blood vessels from cancellous bone to connect with vessels of PDL space	alveolar bone proper
periosteum	layer of connective tissue covering the outer surface of bone
alveolar crest	most coronal portion of alveolar process
in health it is located 1-2mm apical to CEJ	alveolar crest
interproximal bone	bone that lies between proximal surfaces of two adjacent teeth
AKA interdental septum	interproximal bone
interradicular bone	bone between roots of multirooted teeth
crestal countour of intenterdental bone	good indicator of periodontal health
in posteriors contour of interproximal crest	parallel to imaginary line drawn between CEJs of adjacent teeth
Horizontal crest contour	CEJs are at same level
Angular crest contour	vertical contour of bone/one of adjacent teeth is tilted or erupted to different height
innervation	branches of trigeminal nerve
Nerve receptors in gingiva, alveolar bone, and periodontal ligament	register pain, touch and pressure
gingiva of maxillary arch innervated by	superior alveolar nerves(anterior,middle, posterior branches),infraorbital nerve, greater palatine and nasopalatine nerves
mental nerve, buccal nerve, and sublingual branch of lingual nerve	gingiva of mandibular arch innervated by
innervation of teeth and PDL of maxillary arch	superior alveolar nerves
innervation of teeth/PDL of mandibulars	inferior alveolar nerve
accounts for dramatic color changes seen in gingivitis	anastomose of vessels of periodontium
transport oxygen/nutrients to tissue cells of periodontium and remove carbon diaxide/waste products from cells	complex network of blood vessels of periodontium
maxillary gingiva,PDL, and alveolar bone	Anterior/posterior superior alveolar arteries,infraorbital artery, greater palatine artery
Mandibular gingiva, PDL, and alveolar bone	inferior alveolar artery, branches of inferior alveolar artery:facial, buccal, mental, and sublingual arteries
Major arteries of teeth/periodontal tissues	superior alveolar arteries of maxillary and inferior alveolar artery of mandibular

Created by: oceanrescue6