OBJECTIVE: To analyse the dimensions of interantral bone available for dental implant placement in the fully edentulous maxilla. METHODS: Interantral bone height (IBH) was measured using panoramic radiography and computed tomography (CT). Interantral bone width (IBW) was measured by means of CT. RESULTS: The difference between both imaging methods in IBH assessment was highly statistically significant (p < 0.001) in the canine area, whereas in other areas it was found not to be significant. Measured in the CT scans, bone is significantly higher in the canine area compared to the area of central and lateral incisors (p < 0.001). Significant variations in IBW were found in all three locations: bone in the central incisor area is the widest, in the area of the lateral incisor, the narrowest (p < 0.001). CONCLUSIONS: Panoramic radiography is a sufficiently accurate method for IBH imaging in the incisor area, but not in the canine area.

OBJETIVO:: Analizar las dimensiones del hueso interantral disponible para la colocación de implantes dentales en el maxilar completamente desdentado. MÉTODOS:: Se midió la altura del hueso interantral (IBH) utilizando radiografía panorámica (ortopantomografía) y tomografía computarizada (TC). Se midió el ancho del hueso interantral (IBW) por medio de la tomografía. RESULTADOS:: La diferencia entre ambos métodos de imagen en la evaluación del IBH fue altamente significativa estadísticamente (p < 0.001) en el área canina, mientras que en otras áreas no lo fue. Medido en escaneos TC, el hueso es significativamente mayor en el área canina, en comparación con el área de los incisivos centrales y laterales (p < 0.001). Se encontraron variaciones significativas en el ancho del hueso (IBW) en las tres zonas; el hueso en el área de los incisivos centrales tiene su parte más ancha; en la zona de los incisivos laterales, la más estrecha (p < 0.001). CONCLUSIÓN:: La radiografía panorámica es un método lo suficientemente preciso para obtener imágenes de IBH en el área de los incisivos, pero no en el área de los caninos.

Department of Dentistry Charles University Prague Faculty of Medicine in Hradec Kralove Simkova 870 50038 Hradec Kralove Czech Republic

Department of Dentistry Charles University Prague Faculty of Medicine in Hradec Kralove Simkova 870 50038 Hradec Kralove Czech Republic; Department of Dentistry Teaching Hospital 50005 Hradec Kralove Czech Republic

Private dental practice Jankovcova 16 788 17000 Prague Czech Republic

Technical University of Liberec Department of Applied Mechanics Studentska 2 46117 Liberec Czech Republic

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