A Survey of Removable Partial Denture (RPD) Retentive Elements in Relation to Type of Edentulism and Abutment Teeth in Commercial Laboratories in Athens
نویسندگان
چکیده
Adresa za dopisivanje Dr Nick Polychronakis National and Kapodistrian University of Athens Dental School Division of Removable Prosthodontics Thivon 2, 11527 Athens, Greece tel i faks: +30-210-7707958 e-adresa: [email protected] Sažetak Svrha: Ovim se istraživanjem željelo istražiti retentivne elemente djelomičnih proteza (RPD) i zubne nosače kod djelomično bezubih pacijenata identifikacijom u komercijalnim atenskim zubnim laboratorijima. Materijali i metode: Procijenjeno je 628 sadrenih modela zajedno s lijevanim metalom koji se rabi za izradu djelomične skeletirane proteze. Modeli su fotografirani kako bi se mogao identificirati broj i smještaj postojećih zuba, zatim klase djelomične proteze i retentivni elementi. Za statističku analizu podataka korištene su tablice prevalencije i x testa (α=.05). Rezultati: Analizirano je 276 maksilarnih modela (43,9 %) i 352 mandibularna (56,1 %). Nedostatak maksilarnih zuba očitovao se u gotovo potpunom nedostatku desnoga (96,7%) i lijevog (96%) trećeg kutnjaka, a također je bilo premalo prvih i drugih kutnjaka. Gubitak zuba u stražnjim dijelovima mandibule pokazivao je sličan uzorak. Od uočenih retentivnih elemenata najčešće su bile kvačice ( 91,9 %), a zglobne veze (attachment) korištene su u 8,1 posto slučajeva. Od kvačica je 48,9 posto bilo Roachovih T-tipa, najčešće Kennedyjeve klase I, u usporedbi s ostalim klasama prema Kennedyju (p<0,01). Cirkumferentnih kvačica bilo 19,3 posto od ukupnog broja kvačica i najrjeđe (8,8 %) su bile iz Kennedyjeve klase I (p<0,01). Zaključak: Najčešće se koristimo Roachovim kvačicama, a RPI-kvačicama i zglobnim vezama (attachment) rijetko. Ključne riječi zubne proteze, djelomične; zubne nadogradnje; zubne kvačice; protetske precizne spojke; zubne proteze, zadržavanje Katedra za mobilnu protetiku Stomatološkog fakulteta Nacionalnoga i kapodistrijskog sveučilišta u Ateni, Grčka Division of Removable Prosthodontics, Dental School, National and Kapodistrian University of Athens, Greece
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تاریخ انتشار 2014