Rev. Rom de STOMATOLOGIE nr.1 - 2007.p65 - medica.ro
Rev. Rom de STOMATOLOGIE nr.1 - 2007.p65 - medica.ro
Rev. Rom de STOMATOLOGIE nr.1 - 2007.p65 - medica.ro
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REVISTA ROMÂNÅ DE <st<strong>ro</strong>ng>STOMATOLOGIE</st<strong>ro</strong>ng> – VOL. LIII, NR. 1, AN 2007<br />
ªef Lucr. Dr. Anna-Maria Pangica<br />
Facultatea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> Medicinå Dentarå,<br />
Universitatea „Titu Maiorescu“, Bucure¿ti<br />
Rezumat<br />
Depistarea curburii radiculare în toate canalele<br />
reprezintå unul dintre cele mai importante principii<br />
ale tratamentului endodontic.<br />
Chiar ¿i canalele aparent drepte sunt în general<br />
curbate în treimea apicala.<br />
Multe rådåcini au, înså, curburi severe în multiple<br />
planuri.<br />
Foarte frecvent aceste curburi nu sunt evi<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>n-<br />
¡iate prin examene radiologice conven¡ionale.<br />
Acest lucru <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>terminå e<strong>ro</strong>ri în tratamentul endodontic.<br />
P<strong>ro</strong>bleme ce apar în tratamentul endodontic al<br />
canalelor curbe:<br />
1. pier<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>rea lungimii <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> lucru prin<br />
– apari¡ia unui dop <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>tritus <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>ntinar<br />
– în<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>pårtarea insuficientå a tavanului camerei<br />
pulpare<br />
– ruperea instrumentului în canal<br />
2. <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>via¡ii <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> la anatomia normalå a canalului:<br />
– zipping<br />
– stripper<br />
3. pregåtirea nea<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>cvatå a canalului prin:<br />
– instrumentarea excesivå dincolo <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> constric¡ia<br />
apicalå<br />
– tratarea excesivå a curburii interne a canalului<br />
– pregåtirea insuficientå a canalului.<br />
Pentru ca så nu aparå aceste p<strong>ro</strong>bleme este indicat<br />
så preparåm canalele curbe prin tehnici<br />
speciale, ¿i anume:<br />
1. tehnica <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> preparare ret<strong>ro</strong>gra<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> (telescopare<br />
regresivå) step-back;<br />
2. tehnica anticurburå;<br />
3. tehnica for¡elor balansate;<br />
4. tehnica for¡elor balansate dublu evazate.<br />
DIFFICULTIES DURING THERAPY OF<br />
CURVED CANALS<br />
Atena Tånåse, MD, Assist. P<strong>ro</strong>f.<br />
Valeriu Cherlea, MD, PhD<br />
Anna-Maria Pangica, MD, Assist. P<strong>ro</strong>f.<br />
Faculty of Dental Medicine,<br />
„Titu Maiorescu“ University, Bucharest<br />
Abstract<br />
Finding the radicular curve in all canals is one<br />
of the most important principles of the endodontic<br />
therapy.<br />
25<br />
Even the canals that seem to be straight are<br />
usually curved in the apical third.<br />
However, many <strong>ro</strong>ots have severe curves on<br />
multiple plans.<br />
Very frequently these curves are not observed<br />
by conventional radiological treatments.<br />
P<strong>ro</strong>blems that may appear during the<br />
endodontic therapy of a curved canal:<br />
1. the working length may be lost by:<br />
– appearance of a <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>ntrius <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>ntinar stopper;<br />
– insufficiently pushing off the upper si<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> of<br />
the pulpar <strong>ro</strong>om;<br />
– breaking the working instrument insi<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> the<br />
canal.<br />
2. <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>viations f<strong>ro</strong>m the regular anatomy of the<br />
canal:<br />
– zipping;<br />
– stripper.<br />
3. ina<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>quately preparing the canal by:<br />
– excessive instrumentation beyond the apical<br />
constriction;<br />
– excessive treatment of the canal’s internal<br />
curve;<br />
– insufficiently preparing the canal.<br />
To prevent these p<strong>ro</strong>blems f<strong>ro</strong>m appearing the<br />
curved canals should be prepared using special<br />
techniques such as:<br />
1. ret<strong>ro</strong>gra<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> step-back preparation technique<br />
(regressive telescoping);<br />
2. anticurve technique;<br />
3. the balancing forces technique;<br />
4. the double splayed balancing forces technique.<br />
UTILIZAREA UNUI DISPOZITIV<br />
INDIVIDUALIZAT PENTRU ÎNREGISTRAREA<br />
UNGHIULUI GOTIC ªI VERIFICAREA<br />
ÎNREGISTRÅRII RELAºIEI CENTRICE LA<br />
EDENTATUL TOTAL<br />
Asist. Univ. Dr. Ingrid Pintilie<br />
Facultatea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> Medicinå Dentarå,<br />
Clinica <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> P<strong>ro</strong>teticå Dentarå,<br />
UMF „Ca<strong>ro</strong>l Davila“, Bucure¿ti<br />
P<strong>ro</strong>f. Univ. Dr. Emilian Hutu<br />
Catedra <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> P<strong>ro</strong>teticå Dentarå,<br />
Facultatea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> Medicinå Dentarå,<br />
Universitatea „Titu Maiorescu“, Bucure¿ti<br />
Rezumat<br />
Determinarea corectå a rela¡iei centrice este<br />
esen¡ialå în p<strong>ro</strong>tezarea e<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>ntatului total. Existå<br />
totu¿i cazuri dificile, la care, chiar prin utilizarea