INTRAORAL DISTRACTION APPLIANCE THAT GENERATES PULLING AND PUSHING FORCES FOR SEGMENTAL BONE MOVEMENT.

Abstract

The invention relates to a dental-supported intraoral distraction appliance that enables controlled movement of an osteotomy-separated alveolar bone segment along a planned direction, through the independent or simultaneous activation of two separate screw mechanisms positioned between a movable carrier unit and a fixed anchorage unit, which generate pushing and pulling forces respectively, and via a U-shaped guide double arch wire that directs the segment movement.

Description

1 TARIFF GENERATING PULLING AND PUSHING FORCES FOR SEGMENTAL BONE MOVEMENT INTRAORAL DISTRACTION APPARATUS TECHNICAL AREA 5 The invention describes the process of separating an alveolar bone segment, separated by osteotomy, from the bone, and then distracting it. between the movable carrier unit connected to the segment and the fixed anchor unit two separate screws positioned and creating pushing and pulling forces respectively independent or simultaneous activation of the mechanism and segment movement Controlled movement along the planned direction via a U-shaped guide double arc wire. with a dental-supported intraoral distraction appliance that allows it to be moved It is related. PREVIOUS TECHNIQUE In the field of orthodontics and maxillofacial surgery, bone separated by osteotomy 15 distraction to enable the gradual displacement of segments Various distraction devices based on the principle of osteogenesis are used. These The systems used for this purpose are generally extraoral distraction systems and intraoral systems. They are classified as distraction systems. In extraoral distraction systems, force transmission is applied to the patient's head area at a distance of 20 degrees. through externally mounted frames or similar mechanical structures is being implemented. These systems are capable of handling large movement volumes and high speeds. While enabling distraction capabilities, the device is located outside the mouth. Its positioning negatively affects patient comfort and is not aesthetically acceptable. This reduces the availability of the device. Additionally, it can cause infection and irritation at the pin or screw insertion sites. and may require care, daily living activities and social adaptation. It can be restricted. In intraoral distraction systems, the force is applied by devices positioned inside the mouth. This is transmitted through mechanical devices. These systems include bone-supported and tooth-supported systems. or can be designed with hybrid anchors. Intraoral distractors have segmental 30 Bone movement is generally achieved through screws or similar mechanical activation elements. This is achieved through a gradual increase in the distraction gap. that is intended. 2 Intraoral systems are designed to be invisible from outside the mouth and for patient comfort. Although it provides an advantage, the direction and magnitude of the force applied are vectorial. The control depends on the geometric structure of the device, the location of the anchor points, and the oral cavity. It is affected by anatomical limitations. Current intraoral distraction devices... In most cases, mechanical activation is based on the push principle. The push principle has 5 In systems based on bone structure, insufficient control of the direction of force can lead to problems. deviation of the segment from the planned path of movement, unwanted rotations This can lead to the occurrence of abnormal and asymmetrical movements. Especially in patients with a large unilateral alveolar cleft, single screw systems are used. In the later stages of the push-based distraction performed, the wire and connection 10 Compression forces can occur on the elements. Limited mucosal space, vestibular depth, tooth root location, and mini screw Anatomical obstacles in the surrounding areas also ensure the ideal positioning of the device. It can restrict this. In this case, the activation line is with the planned distraction vector. There may be a conflict. 15 Most current systems only have a propulsion mechanism, There are also limitations in clinical situations where segment extraction and transport is more appropriate. This creates a barrier. Separating the segment from the surrounding anatomical structures allows the device to... reducing the volume it occupies in the mouth or moving its movement vector further back Tensile force is needed where identification is necessary. 20 It can be heard. THE PURPOSE OF THE INVENTION The purpose of the invention is to create an osteotomy-separated area in intraoral distraction applications. The movement of the alveolar bone segment is not dependent solely on the thrust force, 25 achieved by applying pulling and pushing forces in a controlled manner The aim is to develop an intraoral distraction appliance that provides this. Another purpose of the invention is to activate independently or simultaneously The direction of movement of the bone segment can be determined using two separate screw mechanisms. It is about gaining control over the amount and vector of progress. 30 Another aim of the invention is to distract the bone segment from the alveolar arch. by guiding it to follow its physiological curvature, it avoids unwanted rotations, asymmetric displacements, and compressions on the wire is the reduction. 3 Another aim of the invention is the push-directional activation of anatomical limitations. an alternative force transmission via tensile force in situations where it is restricted is to ensure. Another aim of the invention is to apply forces through multiple mechanisms. By transferring the load, the system distributes the load in the anchor areas and during distraction, system 5 increasing its stability. Another aim of the invention is to help patients with wide cleft lip and palate. by guiding the alveolar segment in a controlled and balanced manner along the alveolar arch Narrowing the alveolar cleft line and obtaining an anatomical shape suitable for bone grafting. It is done. 10 Another purpose of the invention is to address the problem of one of the screw mechanisms breaking or loosening, if it loses its function or becomes biomechanically inadequate the distraction process can be continued via another screw mechanism to provide. LIST OF FIGURES Figure 1. The invention describes a device that generates tensile and compressive forces for segmental bone movement. General view of the intraoral distraction device. The corresponding numbers in the figures are: 20 1. First screw 2. Second screw 3. Acrylic movable carrier unit 4. Acrylic fixed anchor unit 5. U-shaped guide double arc wire 25 6. Fastener 7. Reactivation tube 8. Transpalatal arch DETAILED DESCRIPTION OF THE INVENTION 30 The subject of the invention is an intraoral distraction device for alveolar joints separated by osteotomy. through a controlled combination of tensile and compressive forces on the bone segment It ensures that the device is moved in the planned direction. The device is located inside the mouth. Alveolar bone to be distracted, positioned opposite each other along the dental arch. 4 Tooth-supported anchorage in the maxilla with acrylic movable carrier unit (3) attached to the segment It includes the acrylic fixed anchor unit (4) and the acrylic movable carrier unit (3). first screw on the power transmission line between the fixed anchor unit (4) mechanism (1) and second screw mechanism (2) are positioned, The U-shaped guide double arc wire (5) extending along the units is the 5 of the movable carrier unit. (3) is positioned to direct its movement according to the fixed anchor unit (4). Mechanical connection between acrylic units via screw mechanisms (1, 2) is provided through the elements (6), reactivation tube (7) screw mechanism It is positioned in the lateral section of the appliance so that it is accessible. Transpalatal The arch (8) consists of fixed anchorage units (4) located on opposite sides of the maxillary dental arch. 10 It extends between them, connecting the units in question. Acrylic movable carrier unit (3), to the alveolar bone segment to be distracted the supporting structure that provides the connection and moves together with the segment in question It consists of forces transmitted from screw mechanisms (1, 2) to the movable carrier unit. (3) is transferred to the bone segment to be distracted. 15 Acrylic fixed anchor unit (4) provides tooth-supported anchorage in the maxilla, thus protecting the appliance. It creates a stable reference point for the fixed anchor unit (4), screw the fixed structural element that receives support from the forces generated by its mechanisms It creates. The first screw mechanism (1) has 20 on the bone segment during its activation. It is configured to generate a pushing force. The first screw As a result of the activation of the mechanism (1), the movable carrier unit (3) becomes a fixed anchor. the unit (4) is removed in a controlled manner and the distraction distance is increased The closure of the fissure line is ensured. The second screw mechanism (2) pulls the bone segment to be distracted 25 It is structured to generate directional force. The second screw mechanism (2), Acrylic movable via connecting element (6) by means of ligature wire in clinical setting It is mechanically connected to the carrier unit (3). The second screw mechanism (2) The pulling force generated by the controlled activation of the movable carrier unit (3) The signal is transmitted to the bone segment to be distracted via the planned 30 It is ensured that the film is pulled in a controlled manner in that direction. The first screw mechanism (1) and the second screw mechanism (2) are different from each other. It can be activated independently or simultaneously. Thanks to this structure... Direction of movement, amount of advancement, and vector of bone segment movement during distraction. Control is maintained over it. The movement of the bone segment is solely due to the thrust force. not remaining tied, by using both pulling and pushing forces together It can be directed. U-shaped guide double arc wire (5), fixed anchor of movable carrier unit (3) guiding mechanism that enables it to progress in the planned direction according to unit (4) 5 It consists of a movable carrier unit (3), along the U-shaped guide double arc wire (5). It is progressing. Thus, during distraction, the bone segment moves parallel to the alveolar crest. This ensures that the vehicle moves in the planned direction and in a stable manner, avoiding unwanted situations. It is possible to reduce rotations and asymmetric displacements. The connecting element (6) is the mechanical connection between the screw mechanisms and the acrylic units. It provides the connection. First screw mechanism (1) and second screw mechanism (2) The forces generated by the movable through the connecting element (6) It is transferred to the carrier unit (3). Reactivation tube (7), screw mechanisms during the distraction process providing clinical access and controlled reactivation of screw mechanisms 15 It allows for this to be done. The transpalatal arch (8) rigidly connects the fixed anchor units (4) to each other. It increases the stability of the maxillary anchor. The transpalatal arch (8) also balancing the forces in the transverse direction, the load between the anchor points sharing and maintaining the stability of the maxillary structure during distraction 20 It contributes. The invention involves the separate screws within the structure that distribute tensile and compressive forces. The movement of the bone segment is implemented through mechanisms (1, 2) in a single It enables the action to be performed regardless of the direction of the force. Thus Orienting the segment to follow the physiological curvature of the alveolar arch, 25 Utilizing force transmission in either a tensile or push direction, depending on anatomical limitations. And it becomes possible to control the distraction vector throughout the process. The distribution of forces between two screw mechanisms (1, 2) is called anchoring. reducing local load in these regions and improving system stability It contributes to its preservation. The presence of two screw mechanisms (1, 2) also contributes to its preservation. 30 if one of the mechanisms breaks, loosens, loses its function, or If it is biomechanically insufficient, the distraction process can be reversed using another screw. This mechanism allows for its continuation. With this structure, especially... In patients with wide cleft lip and palate, the alveolar segment of the alveolar bone... 6 controlled guidance along the arch and narrowing of the alveolar cleft line This is achieved. As a result of distraction, an anatomical shape suitable for bone grafting is formed. The aim is to obtain it. 10 20 30

Claims

7 REQUESTS 1. An intraoral device that generates pulling and pushing forces for segmental bone movement. It is a distraction device, the characteristic of which is; to the alveolar bone segment to be distracted acrylic movable 5 that connects and moves together with the segment in question carrier unit (3), acrylic fixed anchor providing tooth-supported anchorage in the maxilla unit (4), acrylic movable carrier unit (3) and acrylic fixed anchor unit (4) positioned on the power transmission line between them and its activation during which the movable carrier unit (3) will be moved away from the fixed anchor unit (4) The first screw mechanism (1) which creates a pushing force, distracted 10 pulling the alveolar bone segment to be removed in the planned direction acrylic movable carrier that creates directional force and through the connecting element (6) The second screw mechanism (2) mechanically connected to the unit (3), acrylic planned according to the fixed anchor unit (4) of the movable carrier unit (3). 15 extending along the units in question to ensure progress in that direction U-shaped guide double arc wire (5), acrylic units with screw mechanisms (1, 2) The connecting element (6) that provides the mechanical connection between them is the screw. to provide clinical access to and reactivation of its mechanisms reactivation tube (7) located in the lateral section of the appliance and fixed anchorage units located on opposite sides of the maxillary dental arch (4) 20 It is characterized by having a transpalatal arch (8) connecting it to the other. 30

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