The effect of zirconia and titanium implant abutments on light reflection of the supporting soft tissues.
Clin Oral Implants Res
; 22(10): 1172-1178, 2011 Oct.
Article
em En
| MEDLINE
| ID: mdl-21251080
ABSTRACT
OBJECTIVES:
To determine the difference in light reflection of oral mucosa covering titanium (Ti) or zirconia (ZrO(2)) abutments as it relates to the thickness of the covering mucosa. MATERIAL ANDMETHODS:
Fifteen anterior implants (Astra Osseo speed(®)) in 11 patients were fitted with a Ti or a ZrO(2) abutment (cross-over, within-subject comparison). Hyper-spectral images were taken with a camera fitted on a surgical microscope. High-resolution images with 70 nm interval between 440 and 720 nm were obtained within 30 s (1392 × 1024 pixels). Black- and white-point reference was used for spatial and spectral normalization as well as correction for motion during exposure. Reflection spectra were extracted from the image on a line mid-buccal of the implant, starting 1 mm above the soft tissue continuing up to 3 mm apically.RESULTS:
Median soft tissue height is 2.3 mm (min 1.2 mm and max 3.1 mm). The buccal mucosa rapidly increases in the thickness, when moving apically. At 2.2 mm, thickness is 3 mm. No perceivable difference between the Ti and ZrO(2) abutment can be observed when the thickness of the mucosa is 2±0.1 mm (95% confidence interval) or more.CONCLUSION:
It is expected that the difference in light reflection of soft tissue covering Ti or ZrO(2) abutments is no longer noticeable for the human eye when the mucosa thickness exceeds 2 mm. Haemoglobin peaks in the reflection spectrum can be observed and make hyper-spectral imaging a practical and useful tool for measuring soft tissue health.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Titânio
/
Zircônio
/
Dente Suporte
/
Implantação Dentária Endóssea
/
Luz
/
Mucosa Bucal
Tipo de estudo:
Clinical_trials
Limite:
Adult
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Clin Oral Implants Res
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2011
Tipo de documento:
Article