Positioning the image receptor slightly diagonally, with the front edge a greater distance from the lingual surfaces of molars than the back edge, will aid in
A) using the bisecting technique.
B) avoiding overlap of the contacts between adjacent teeth.
C) aligning the image receptor perpendicular to the embrasures.
D) eliminating patient discomfort.
B
Explanation: A) Because the interproximal surfaces of the molars are in a mesiodistal relationship to the patient's sagittal plane, conventional image receptor placement parallel to the buccal surfaces may result in overlapping of the contact areas and closure of the embrasure spaces. To assist with avoiding the occurrence of overlap error, the image receptor should be positioned perpendicularly to the embrasures. To achieve this position, the image receptor should be placed slightly diagonal, with the front edge of the receptor a greater distance from the lingual surfaces of the teeth than the back edge.
B) Because the interproximal surfaces of the molars are in a mesiodistal relationship to the patient's sagittal plane, conventional image receptor placement parallel to the buccal surfaces may result in overlapping of the contact areas and closure of the embrasure spaces. To assist with avoiding the occurrence of overlap error, the image receptor should be positioned perpendicularly to the embrasures. To achieve this position, the image receptor should be placed slightly diagonal, with the front edge of the receptor a greater distance from the lingual surfaces of the teeth than the back edge.
C) Because the interproximal surfaces of the molars are in a mesiodistal relationship to the patient's sagittal plane, conventional image receptor placement parallel to the buccal surfaces may result in overlapping of the contact areas and closure of the embrasure spaces. To assist with avoiding the occurrence of overlap error, the image receptor should be positioned perpendicularly to the embrasures. To achieve this position, the image receptor should be placed slightly diagonal, with the front edge of the receptor a greater distance from the lingual surfaces of the teeth than the back edge.
D) Because the interproximal surfaces of the molars are in a mesiodistal relationship to the patient's sagittal plane, conventional image receptor placement parallel to the buccal surfaces may result in overlapping of the contact areas and closure of the embrasure spaces. To assist with avoiding the occurrence of overlap error, the image receptor should be positioned perpendicularly to the embrasures. To achieve this position, the image receptor should be placed slightly diagonal, with the front edge of the receptor a greater distance from the lingual surfaces of the teeth than the back edge.
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