Fixing screws for bone grafting in the tooth socket.

Abstract

OCR 09WP 04 / 11 / 2568 The bone fixation screw for the tooth socket consists of a screw head (1) and a screw body that is divided into 3. The main parts are the upper body (3), the middle body (4) and the lower body (6) with the tip (7). The screw head has It has a tapered, convex head with a diameter larger than its body, and is connected to the upper body which has spirals. Outside the upper part (2) trapezoidal shape parallel to the body line, used to firmly fix the implanted bone to the body. The center is a solid, smooth rod without threads to increase the screw's strength and reduce stress on the bone during tightening. The lower body has an external thread (5) smaller than the upper thread and has a trapezoidal cross-section to It helps reduce pressure on the bone, and the screw tip is designed like a drill bit for drilling into the bone without... A pilot hole must be drilled before use.

Claims

OCR 09WP 04 / 11 / 2568 1. The bone fixation screw for the tooth socket consists of two main parts: the screw head (1) and the screw body. The torso is divided into sections: the upper torso (3), the middle torso (4), the lower torso (6), and the distal part (7). Its specific characteristics are that the screw head (1) is shaped into a convex tapered head with a diameter of The center is larger than the body. The screw head is connected to the upper body (3). The upper body is made up of an external thread. The upper part (2) has a cross-section shaped like a trapezoid parallel to the body, with the diameter of the line being arranged. The center of the outer spiral is larger than the outer spiral of the lower body (5) and is used to hold the transplanted bone still. The upper part (3) is connected to the middle body (4), which is a solid, straight, smooth rod without threads. To increase the strength of the screw and reduce the chance of it breaking easily in the middle, especially during the screw installation process. The inward or outward movement helps to reduce resistance or stress on the bones, and the mid-trunk (4) is connected to the trunk. The lower part (6), where the lower body (6) where the outer spiral of the lower body (5) is arranged to have a smaller diameter. The upper body external spiral (2) and the lower body external spiral (5) have a trapezoidal cross-section. Parallel to the body to reduce the risk of pressure on the bones, which at the end (7) has a pointed shape. A drill that allows it to penetrate bone without the need for a pilot hole.

2. Fixing screws for bone grafting in the alveolar socket, according to claim 1, where the external thread of the upper body (2) or external thread The lower body (5) is arranged in a spiral with at least one layer of consistent frequency.

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