Abstract: A teaching device 10 includes a radiopaque skull 30 and radiopaque teeth 24, covered with plastic foam and silicone skin 31 to simulate a human head having correct external anatomical form. Pliable lips 20, 21 and other anatomical features realistically reproduce the challenges of taking dental x-rays images.

Abstract: A dental x-ray image media holder comprising: a backing plate affixed to a bite block, the backing plate including a least one channel for receiving a post affixed to the bite block, such that the bite block can be selectively moved within the channels to orient the bite block in a predetermined position relative to the backing plate; and a plurality of indicia, such that at least one of the indicia is used to indicate a first position of the bite block relative to the backing plate, the first position being associated with a predetermined first dental imaging procedure; and a locking member configured to prevent rotational movement of the bite block along a post axis upon engagement of the locking member.

Abstract: A device (10) for holding a sensor (11) during a dental x-ray procedure includes a jaw (21) affixed to an elastomeric biasing member (22) that exerts a biasing force upon the sensor (11) to secure the sensor (11) between the jaw (21) and a support surface (30). In use, the user moves the jaw (21) in a direction away from the support surface (30), places the sensor (11) between the jaw (21) and the support surface (30) and allows the biasing force of the elastomeric biasing member (22) to draw the jaw (21) into physical engagement with the sensor (11).

Abstract: A dental bite block (20) and sensor holder (21) assembly (11) has a bite block (20) configured (31) to detachably affix to a sensor holder (21). Affixing surfaces (30, 31) are provided between the bite block (20) and the sensor holder (21) such that the sensor holder (21) is removably affixed to the bite block (20). An alternative guide arm (100) has more than one attachment site (101a, 101b) for removably affixing a sensor holder (102, 103, 104) to the guide arm (100).

Abstract: A dental x-ray image media holder comprising: a backing plate affixed to a bite block, the backing plate including a least one channel for receiving a post affixed to the bite block, such that the bite block can be selectively moved within the channels to orient the bite block in a predetermined position relative to the backing plate; and a plurality of indicia, such that at least one of the indicia is used to indicate a first position of the bite block relative to the backing plate, the first position being associated with a predetermined first dental imaging procedure; and a locking member configured to prevent rotational movement of the bite block along a post axis upon engagement of the locking member.

Abstract: A dental x-ray image media holder (10) includes an image media backing plate (11) adjustably affixed to a bite block (12). The backing plate (11) has at least one channel (31-33) for receiving a post (21) affixed to the bite block (12), such that the bite block (12) can be selectively moved within the channel (31-33) to orient the bite block (12) in a predetermined position relative to the backing plate (11).

Abstract: A dental bite block (20) and sensor holder (21) assembly (11) has a bite block (20) configured (31) to detachably affix to a sensor holder (21). Affixing surfaces (30, 31) are provided between the bite block (20) and the sensor holder (21) such that the sensor holder (21) is removably affixed to the bite block (20). An alternative guide arm (100) has more than one attachment site (101a, 101b) for removably affixing a sensor holder (102, 103, 104) to the guide arm (100).

Abstract: A dental x-ray image media holder (10) includes an image media backing plate (11) adjustably affixed to a bite block (12). The backing plate (11) has at least one channel (31-33) for receiving a post (21) affixed to the bite block (12), such that the bite block (12) can be selectively moved within the channel (31-33) to orient the bite block (12) in a predetermined position relative to the backing plate (11).

Abstract: A light control system and method for a film viewer (10). The viewer (10) includes an infrared emitter (50) with an infrared detector (52) in communication with a microprocessor (34). When a radiograph (40) is inserted within the film viewer (10), the radiograph (10) is interposed between the emitter (50) and detector (52). The microprocessor (34) detects a change in the emissions sensed by the detector (52) and illuminates the viewer (10). The invention also provides a film holder (16) that includes a plurality of rollers (60) interposed between the holder (16) and the screen (14).