TY - GEN
T1 - Radiographic, micro computer tomography and optical coherence tomography investigations of ceramic interfaces
AU - Sinescu, Cosmin
AU - Negrutiu, Meda Lavinia
AU - Ionita, Ciprian
AU - Topala, Florin
AU - Petrescu, Emanuela
AU - Rominu, Roxana
AU - Pop, Daniela Maria
AU - Marsavina, Liviu
AU - Negru, Radu
AU - Bradu, Adrian
AU - Rominu, Mihai
AU - Podoleanu, Adrian G.
PY - 2010
Y1 - 2010
N2 - Imagistic investigation of the metal-ceramic crowns and fixed partial prostheses represent a very important issue in nowadays dentistry. At this time, in dental office, it is difficult or even impossible to evaluate a metal ceramic crown or bridge before setting it in the oral cavity. The possibilities of ceramic fractures are due to small fracture lines or material defects inside the esthetic layers. Material and methods: In this study 25 metal ceramic crowns and fixed partial prostheses were investigated by radiographic method (Rx), micro computer tomography (MicroCT) and optical coherence tomography (OCT) working in Time Domain, at 1300 nm. The OCT system contains two interferometers and one scanner. For each incident analysis a stuck made of 100 slices was obtain. These slices were used in order to obtain a 3D model of the ceramic interface. Results: RX and MicroCT are very powerful instruments that provide a good characterization of the dental construct. It is important to observe the reflections due to the metal infrastructure that could affect the evaluation of the metal ceramic crowns and bridges. The OCT investigations could complete the imagistic evaluation of the dental construct by offering important information when it is need it.
AB - Imagistic investigation of the metal-ceramic crowns and fixed partial prostheses represent a very important issue in nowadays dentistry. At this time, in dental office, it is difficult or even impossible to evaluate a metal ceramic crown or bridge before setting it in the oral cavity. The possibilities of ceramic fractures are due to small fracture lines or material defects inside the esthetic layers. Material and methods: In this study 25 metal ceramic crowns and fixed partial prostheses were investigated by radiographic method (Rx), micro computer tomography (MicroCT) and optical coherence tomography (OCT) working in Time Domain, at 1300 nm. The OCT system contains two interferometers and one scanner. For each incident analysis a stuck made of 100 slices was obtain. These slices were used in order to obtain a 3D model of the ceramic interface. Results: RX and MicroCT are very powerful instruments that provide a good characterization of the dental construct. It is important to observe the reflections due to the metal infrastructure that could affect the evaluation of the metal ceramic crowns and bridges. The OCT investigations could complete the imagistic evaluation of the dental construct by offering important information when it is need it.
KW - Fractures
KW - Materials defects
KW - Metal ceramic crowns and bridges
KW - Micro computer tomography
KW - Optical coherence tomography
KW - Radiographic method
UR - https://www.scopus.com/pages/publications/85030030061
M3 - Conference contribution
AN - SCOPUS:85030030061
SN - 9780819485540
T3 - Optics InfoBase Conference Papers
BT - Asia Communications and Photonics Conference and Exhibition, ACP 2010
PB - Optical Society of America (OSA)
T2 - Asia Communications and Photonics Conference and Exhibition, ACP 2010
Y2 - 8 December 2010 through 12 December 2010
ER -