
daanton kaa avashoshan

daant kii jarh kaa avashoshan, yaa jarh kaa avashoshan, odontoclast kii kriya seey dentin aur cementum kaa pragatisheel nuksan haye. jarh kaa avashoshan ack samanya shaaririk prakriya haye joe praathamik dunt chikitsa key exfoliation mein hoti haye. haalaanki, pathological root resorption sthaayi yaa maadhyamik denting mein aur kabhi-kabhi praathamik denting mein hotaa haye.
kaaran.
jabaki huddy kaa avashoshan poore shareer mein uttejanaon key liye ack samanya shaaririk pratikriya haye, sthaayi dunt chikitsa mein jarh kaa avashoshan aur kabhi-kabhi praathamik dunt chikitsa mein rogjanak hotaa haye. jarh koo aantarik roop seey (endodontium) pree-dentin dwara aur baahari roop seey jarh kii satah parr cementum aur periodontal ligament dwara sanrakshit kiya jaataa haye. purani uttejanaaen joe inn surakshaatmak paraton koo nuksan pahunchaati hain, antarnihit dentin koo austioclast kii kriya key liye ujagar karati hain.
jarh kaa avashoshan aamtaur parr palp necrosis, aghaat, periodontal upchaar, orthodontic daanton kii gati aur daanton key safed honey key kaaran soojan key kaaran hotaa haye. cumm samanya karanon mein apasthaaniya daanton, sist aur tumour seey dabaav shamil hain.
pathophysiology.
jarh avashoshan key pathophysiology koo poori tarah seey samajha naheen gayaa haye. yeh abhinirdhaarit haye kii austioclast jarh kii satah key avashoshan key liye jimmedaar koshikaaen hain. austioclast huddy, upaasthi aur dentin koo toda sakate hain.
paramanu kaarak kappa-bee ligand (rankl) kaa grahansheel sakriyak, jise austioclast vibhedan kaarak (oh. dee. aff.) aur osteoprotegerin ligand (oh. pee. jee. ell.) bhee kahaa jaataa haye, austioclast kaary kaa ack niyaamak haye. shaaririk huddy mein modd, austioblast aur stromal koshikaaen rankl chhodati hain, yeh macrophage aur monocytes parr kaary karati haye joe fuse hoe jaati hain aur austioclast bunn jaati hain. osteoprotegerin (oh. pee. jee.) austioclast aur stromal koshikaon dwara bhee sraavit hotaa haye; yeh rank aur isaliye austioclast gatividhi koo rokta haye.
ack vichaar yeh haye kii bacteria kii upasthiti ack bhoomika nibhaati haye. jeevaanu kii upasthiti palpal yaa perry-peripical soojan kii or leey jaati haye. yeye bacteria austioclast gatividhi key madhyasth naheen hain, lekin leukocyte chemotaxis kaa kaaran banate hain. leukocytes "porpheromonas", "prevotella" aur "traponema" prajaatiyon mein paae jaane vaale lipopolysaccharide antigen kii upasthiti mein austioclast mein bhinn hotey hain (yeye sabhi jeevaanu prajaatiyan hain joe palpal yaa periapical soojan seey judee hain).
asthi-shleshma asthi-niyaman key dauran sakriya hotey hain, asthi-avashoshan aur nikshepan key beach nirantar santulan hotaa haye. periodontal ligament koo nuksan honey seey austioclast koo sakriya karane vaale rank release hoe sakate hain. jarh kii satah key nikat austioclast jarh kii satah cementum aur antarnihit jarh dentin koo phir seey avashoshit karenge. yeh jarh kii satah mein sookshm gaddhon key sakshya seey laker jarh kii satah kii poori tabahi taka kii gambhirta mein bhinn hoe sakata haye.
jaba jarh nahar/jadon mein yaa jarh kii baahari satah key buggle mein soojan (aghaat, bacteria, daant safed honah, orthodontic andolan, periodontal upchaar) kaa kaaran upman hotaa haye, tou cytokine kaa utpaadan hotaa haye, rank pranali sakriya hoti haye aur austioclast sakriya hotey hain aur jarh kii satah koo phir seey avashoshit karate hain.
yadi upman kshanik haye, tou avashoshan bund hoe jaayega aur upchaar hoga, ise kshanik soojan avashoshan key roop mein jaanaa jaataa haye. yadi upman lagaatar hotaa haye, tou avashoshan jaari rahata haye, aur yadi daant key ootak koo aparivartaniya roop seey kshatigrast kiya jaataa haye, tou poorna avashoshan hoe sakata haye.
vargeekaran.
resorptive ghaavon koo aantarik yaa baahari key roop mein vargeekrit kiya jaataa haye aur phir unake kaaranvigyaan key aadhar parr aage upvibhajit kiya jaataa haye.
aantarik jarh avashoshan.
aantarik avashoshan koo jarh nahar (oun) key madhya aur epical tihai key bheetar seey intraredicular dentin aur tubeler dentin key nuksan seey paribhaashit kiya jaataa haye.
yeh ack aakasmik, radiographic khoj key roop mein bhee prastut hoe sakata haye. radiographic roop seey, jarh nahar key bheetar ack samaan ghanatva kaa ack radiolucent kshetra achchi tarah seey paribhaashit seemaon key saath dikhaai dey sakata haye. nahar kii deevaaren sclerosed dikhaai dey sakati hain, iss prakaar palp chamber yaa root naharon kii ruprekha kaa ghaav key madhyam seey paalan naheen kiya jaa sakata haye. ghaav andakar radiolucency bhee hoe sakate hain joe nahar kii divaaron key saath nirantar hotey hain.
deerghakaalik palpal soojan koo aantarik avashoshan kaa kaaran maanaa jaataa haye. austioclast koo poshak tatva pradaan karane key liye punarbharan key kshetra key neeche goodaa mahatvapurna honah chaahiye. yadi goodaa poori tarah seey nasht hoe jaataa haye tou avashoshan taba taka bund hoe jaayega jaba taka kii paarshv naharen poshak tatvon key saath austioclast kii aapoorti key liye maujood naheen hain.
yadi jarh key chhidran seey pahale sthiti kaa pataa chalaa haye, tou endodontic therapy (root kainal therapy) koo kaafee uchch safalata darr kii ummeed key saath kiya jaa sakata haye. uttejana (soojan vaalaa goodaa) koo hataane key parinamswarup punarsrijan prakriya bund hoe jaati haye.
baahari mool avashoshan.
baahari avashoshan daant kii baahari satah seey daant sanrachana kaa nuksan haye aur isake kaaran key aadhar parr ise aage upashreneekrit kiya jaataa haye.
baahari soojan jarh avashoshan.
baahari soojan jarh kaa avashoshan jarh kii satah parr aghaat key kaaran hoe sakata haye, periodontal ligament (pdl) koo nuksan key kaaran aur/yaa daanton key avalsion key baad vistaarit sukhaane key kaaran. aghaat key baad, dunt nalikaaen ack sankraamak yaa necrotic palp key saath sanchaar key liye ujagar hoti hain. yeh ack soojan prakriya kii or leey jaataa haye joe baahari jarh avashoshan kaa kaaran banati haye.
vaikalpik roop seey, dabaav baahari soojan jarh avashoshan kaa kaaran bhee bunn sakata haye. vishesh roop seey, bhaari, nirantar aur ghuspaith kaa anuprayog (i.ee. huddy kii or nirdeshit) orthodontic daanton key andolan key dauran bull baahari jarh avashoshan seey judey hotey hain.
baahari satah mool avashoshan.
jarh kii satah yaa periodontium mein sthaaniya aur seemit chot key kaaran hotaa haye. yeh avashoshan kii ack kshanik, aatm-seemit prakriya haye joe dardanaak uttejana koo hataane key baad bund hoe jaati haye aur isake baad jarh kii satah, cementum aur periodontal ligament kaa upchaar hotaa haye.
baahari grieva jarh avashoshan.
baahari grieva avashoshan daant key grieva kshetra mein ack sthaaniya avashoshit ghaav haye, joe upkala sanlagnak key neeche hotaa haye. yeh baahari soojan jarh avashoshan seey alag haye kyonki isamen shayed hii kabhi goodaa shamil hotaa haye.  jaba cumm seey cumm 3 daant prabhaavit hotey hain, tou ise multiple idiopathic cervical root resorption key roop mein sandarbhit kiya jaataa haye. garbhashay grieva kii baahari jarh key avashoshan key karanon koo bahut cumm samajha jaataa haye lekin aghaat, periodontal upchaar, aur/yaa daant safed honey key kaaran purvanirdhaarit kaarak hoe sakate hain.
baahari pratisthaapan mool avashoshan.
baahari pratisthaapan jarh avashoshan (truti) jarh kii satah koo huddy key saath badalane key kaaran hotaa haye, i.ee. anchylosis. truti koo aage kshanik yaa pragatisheel key roop mein vargeekrit kiya jaa sakata haye joe periodontal ligament kshati kii seema key aadhar parr baad vaale key parinamswarup poorna jarh avashoshan mein hotaa haye.
naidaanik vichaar.
orthodontic upchaar key dauran orthodontic roop seey prerit baahari jarh avashoshan (oerr) hoe sakata haye. bhaari, nirantar bull kaa upayog oyer kii ghatana aur gambhirta koo badhaata haye. isake atirikt, haddiyon kii or nirdeshit bull (i.ee. ghuspaith) yaa bhashai toqa bhee oyer kaa kaaran bunn sakata haye. dilchasp baat yeh haye kii pichhale mool aghaat aur asamanya mool aakriti vigyaan ack koo oyer key liye purvanirdhaarit naheen karate hain. isake alawa, endodontic roop seey upchaarit daant ack mahatvapurna goode kii anupasthiti key kaaran oyer naheen badhaate hain joe soojan koo prerit curr sakate hain. iss prakaar, sanket key anusaar oyer kaa pataa lagaane key liye screening radiograph lene kii sifarish kii jaati haye, vishesh roop seey ghuspaith karane vaale andolanon key liye prakaash balon kaa upayog karein, aur yadi aavashyak hoe tou endodontic upchaar karein.
haalaanki, baahari jarh avashoshan key anya roopon key upchaar mein majboot saboot kii kamee key kaaran, vartamaan mein baahari jarh avashoshan key prabandhan key liye koee bhee anushansit sarvottam upchaar naheen haye. upchaar mamle parr nirbhar hain aur naidaanik nirnay aur anubhav parr nirbhar hain. isaliye iss kshetra mein aur adhik shodh kii aavashyakta haye.

