TY  - JOUR
AU  - Todorović, Aleksandar
AU  - Lisjak, Dejan
AU  - Lazić, Vojkan
AU  - Špadijer-Gostović, Aleksandra
PY  - 2010
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1524
AB  - Introduction. Modern technologies offer a range of benefits and significantly improve specific therapeutic procedures in dentistry. However, despite gaining experience and training there are still some mistakes in their implementation. The aim of this study was to describe the most common errors during intraoral scanning, 'optical impression' procedure, during CAD-CAM technology for production of dental restorations. Material and Methods. Cerec® 3D CAD-CAM system for one visit tooth reconstruction by inlays, onlays, endocrowns, half and complete crowns and veneers from the ceramic material was used in the study. Results. Analysis included 1564 reconstruction during 5 years. The most common causes of errors performing optical impression were the result of: improper preparation of teeth, the instability of the scanner in the mouth of the patient, incorrect position and angle of the scanner to the object scanning, contrast spray applied in uneven layer, the presence of fluid in the region scan, the presence of artifacts in the region gingival sulcus. Conclusion. Optical impression is faster procedure than conventional impression, but technologically sensitive. The most frequent errors are: improper handling of the scanner, inadequate tooth preparation, irregular powder application on the tooth and irregular use in the gingival sulcus.
AB  - Uvod. Savremene tehnologije u stomatologiji imaju niz prednosti i značajno unapređuju pojedine terapijske postupke. Međutim, i pored sticanja i usavršavanja određenih iskustava, javljaju se greške u njihovoj primeni. Cilj rada je bio da se prikažu najčešće greške prilikom postupka optičkog intraoralnog skeniranja (tzv. otiskivanja) kod CAD-CAM tehnologije izrade zubnih nadoknada. Materijal i metode rada. U radu je korišćen Cerec ® 3D CAD-CAM sistem za jednoseansnu rekonstrukciji zuba izradom inleja, onleja, endokruna, delimičnih i celih kruna, venira, najčešće izrađenih od keramičkih materijala. Rezultati. Analiza je obuhvatila 1.564 restauracije tokom petogodišnjeg rada. Najčešći uzroci grešaka kod optičkog otiskivanja bili su posledica nepravilne preparacije zuba, nestabilnosti skenera u ustima pacijenta, nepravilna pozicija i ugao skenera u odnosu na objekat snimanja, kontrastni sprej nanesen u neravnomernom sloju, zastupljenost tečnosti u regionu skeniranja i artefakta u regionu gingivalnog sulkusa. Zaključak. Optičko intraoralno skeniranje je jednostavniji i brži princip otiskivanja od konvencionalnog postupka, ali je tehnološki osetljiviji. Najčešće greške prilikom optičkog otiskivanja su: nepravilno rukovanje skenerom, neadekvatna priprema zuba, nepravilno nanošenje praha za matiranje površina i nepravilna priprema regiona gingivalnog sulkusa.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Possible errors during the optical impression procedure
T1  - Moguće greške prilikom intraoralnog optičkog otiskivanja
VL  - 57
IS  - 1
SP  - 30
EP  - 37
DO  - 10.2298/SGS1001030T
ER  - 

@article{
author = "Todorović, Aleksandar and Lisjak, Dejan and Lazić, Vojkan and Špadijer-Gostović, Aleksandra",
year = "2010",
abstract = "Introduction. Modern technologies offer a range of benefits and significantly improve specific therapeutic procedures in dentistry. However, despite gaining experience and training there are still some mistakes in their implementation. The aim of this study was to describe the most common errors during intraoral scanning, 'optical impression' procedure, during CAD-CAM technology for production of dental restorations. Material and Methods. Cerec® 3D CAD-CAM system for one visit tooth reconstruction by inlays, onlays, endocrowns, half and complete crowns and veneers from the ceramic material was used in the study. Results. Analysis included 1564 reconstruction during 5 years. The most common causes of errors performing optical impression were the result of: improper preparation of teeth, the instability of the scanner in the mouth of the patient, incorrect position and angle of the scanner to the object scanning, contrast spray applied in uneven layer, the presence of fluid in the region scan, the presence of artifacts in the region gingival sulcus. Conclusion. Optical impression is faster procedure than conventional impression, but technologically sensitive. The most frequent errors are: improper handling of the scanner, inadequate tooth preparation, irregular powder application on the tooth and irregular use in the gingival sulcus., Uvod. Savremene tehnologije u stomatologiji imaju niz prednosti i značajno unapređuju pojedine terapijske postupke. Međutim, i pored sticanja i usavršavanja određenih iskustava, javljaju se greške u njihovoj primeni. Cilj rada je bio da se prikažu najčešće greške prilikom postupka optičkog intraoralnog skeniranja (tzv. otiskivanja) kod CAD-CAM tehnologije izrade zubnih nadoknada. Materijal i metode rada. U radu je korišćen Cerec ® 3D CAD-CAM sistem za jednoseansnu rekonstrukciji zuba izradom inleja, onleja, endokruna, delimičnih i celih kruna, venira, najčešće izrađenih od keramičkih materijala. Rezultati. Analiza je obuhvatila 1.564 restauracije tokom petogodišnjeg rada. Najčešći uzroci grešaka kod optičkog otiskivanja bili su posledica nepravilne preparacije zuba, nestabilnosti skenera u ustima pacijenta, nepravilna pozicija i ugao skenera u odnosu na objekat snimanja, kontrastni sprej nanesen u neravnomernom sloju, zastupljenost tečnosti u regionu skeniranja i artefakta u regionu gingivalnog sulkusa. Zaključak. Optičko intraoralno skeniranje je jednostavniji i brži princip otiskivanja od konvencionalnog postupka, ali je tehnološki osetljiviji. Najčešće greške prilikom optičkog otiskivanja su: nepravilno rukovanje skenerom, neadekvatna priprema zuba, nepravilno nanošenje praha za matiranje površina i nepravilna priprema regiona gingivalnog sulkusa.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Possible errors during the optical impression procedure, Moguće greške prilikom intraoralnog optičkog otiskivanja",
volume = "57",
number = "1",
pages = "30-37",
doi = "10.2298/SGS1001030T"
}

Todorović, A., Lisjak, D., Lazić, V.,& Špadijer-Gostović, A.. (2010). Possible errors during the optical impression procedure. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 57(1), 30-37.
https://doi.org/10.2298/SGS1001030T

Todorović A, Lisjak D, Lazić V, Špadijer-Gostović A. Possible errors during the optical impression procedure. in Stomatološki glasnik Srbije. 2010;57(1):30-37.
doi:10.2298/SGS1001030T .

Todorović, Aleksandar, Lisjak, Dejan, Lazić, Vojkan, Špadijer-Gostović, Aleksandra, "Possible errors during the optical impression procedure" in Stomatološki glasnik Srbije, 57, no. 1 (2010):30-37,
https://doi.org/10.2298/SGS1001030T . .

TY  - JOUR
AU  - Veselinović, Valentina
AU  - Todorović, Aleksandar
AU  - Lisjak, Dejan
AU  - Lazić, Vojkan
PY  - 2008
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1444
AB  - The all-ceramic endocrowns are one piece restoration used in the therapy of endodontically treated teeth, usually, with a decreased vertical dimension of the tooth crown. The aim of this paper is to describe two techniques of the making of endocrowns using case studies and to present the advantages and disadvantages of both techniques by way of their comparison. Chair-side production with the Cerec CAD-CAM system and pressing of the ceramic with the Empres II system was used for the production of the endocrowns. Cerec CAD-CAM and Empres II systems yielded equally good results in the production of the endocrowns, in terms of their functionality, retention, aesthetic and duration. The basic difference between them is the length of the endocrown production procedure as the Cerec CAD-CAM system makes it possible to apply the treatment during a single visit using a wide range of materials….
AB  - Bezmetalne endokrune su jednokomadne nadoknade koje se koriste u terapiji endodontski lečenih zuba u uslovima smanjene vertikalne dimenzije krunice zuba. Cilj ovog rada je bio da se na slučajevima iz kliničke prakse predstave dve tehnike izrade endokruna i da se poređenjem karakteristika tih sistema ukaže na njihove prednosti i nedostatke. Kod jednog pacijenta, za izradu endokruna korišćena je jednoseansna izrada Cerec CAD-CAM sistemom, a kod drugog presovanje keramike Empres II sistemom. Obe tehnike, i Cerec CAD - CAM i Empress II sistem, pokazale su podjednako dobre rezultate, u smislu funkcionalnosti, retencije, estetike i dugotrajnosti endokruna. Osnovna razlika je u trajanju procedure izrade endokruna jer Cerec CAD - CAM sistem omogućava tretman u samo jednoj poseti pacijenta i koristi širu paletu gradivnih materijala.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Restoring endodontically treated teeth with all-ceramic endo-crowns: Case report
T1  - Primena bezmetalnih endokruna u protetskoj terapiji endodontski lečenih zuba - prikaz slučaja
VL  - 55
IS  - 1
SP  - 54
EP  - 64
DO  - 10.2298/SGS0801054V
ER  - 

@article{
author = "Veselinović, Valentina and Todorović, Aleksandar and Lisjak, Dejan and Lazić, Vojkan",
year = "2008",
abstract = "The all-ceramic endocrowns are one piece restoration used in the therapy of endodontically treated teeth, usually, with a decreased vertical dimension of the tooth crown. The aim of this paper is to describe two techniques of the making of endocrowns using case studies and to present the advantages and disadvantages of both techniques by way of their comparison. Chair-side production with the Cerec CAD-CAM system and pressing of the ceramic with the Empres II system was used for the production of the endocrowns. Cerec CAD-CAM and Empres II systems yielded equally good results in the production of the endocrowns, in terms of their functionality, retention, aesthetic and duration. The basic difference between them is the length of the endocrown production procedure as the Cerec CAD-CAM system makes it possible to apply the treatment during a single visit using a wide range of materials…., Bezmetalne endokrune su jednokomadne nadoknade koje se koriste u terapiji endodontski lečenih zuba u uslovima smanjene vertikalne dimenzije krunice zuba. Cilj ovog rada je bio da se na slučajevima iz kliničke prakse predstave dve tehnike izrade endokruna i da se poređenjem karakteristika tih sistema ukaže na njihove prednosti i nedostatke. Kod jednog pacijenta, za izradu endokruna korišćena je jednoseansna izrada Cerec CAD-CAM sistemom, a kod drugog presovanje keramike Empres II sistemom. Obe tehnike, i Cerec CAD - CAM i Empress II sistem, pokazale su podjednako dobre rezultate, u smislu funkcionalnosti, retencije, estetike i dugotrajnosti endokruna. Osnovna razlika je u trajanju procedure izrade endokruna jer Cerec CAD - CAM sistem omogućava tretman u samo jednoj poseti pacijenta i koristi širu paletu gradivnih materijala.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Restoring endodontically treated teeth with all-ceramic endo-crowns: Case report, Primena bezmetalnih endokruna u protetskoj terapiji endodontski lečenih zuba - prikaz slučaja",
volume = "55",
number = "1",
pages = "54-64",
doi = "10.2298/SGS0801054V"
}

Veselinović, V., Todorović, A., Lisjak, D.,& Lazić, V.. (2008). Restoring endodontically treated teeth with all-ceramic endo-crowns: Case report. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 55(1), 54-64.
https://doi.org/10.2298/SGS0801054V

Veselinović V, Todorović A, Lisjak D, Lazić V. Restoring endodontically treated teeth with all-ceramic endo-crowns: Case report. in Stomatološki glasnik Srbije. 2008;55(1):54-64.
doi:10.2298/SGS0801054V .

Veselinović, Valentina, Todorović, Aleksandar, Lisjak, Dejan, Lazić, Vojkan, "Restoring endodontically treated teeth with all-ceramic endo-crowns: Case report" in Stomatološki glasnik Srbije, 55, no. 1 (2008):54-64,
https://doi.org/10.2298/SGS0801054V . .