Btm9 root resorption
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Btm9 root resorption
- 1. The etiology of orthodontic root resorption www.indiandentalacademy.com
- 57. What could be the reason(s) for Regina T.’s root resorption? Most likely uncontrolled tipping of the maxillary incisors and canines, in an effort to eliminate the large overjet. As a result of the exclusive use of round arch wires for this procedure, the root apices moved through the labial bone plate, and into the vestibular mucosa. www.indiandentalacademy.com
- 58. What could be the reason(s) for Regina T.’s root resorption? Fenestrations in the labial bone plate are created by osteoclasts that resorb the bone as the root apex is being pushed into it. Once the fenestration occurs, the apex moves into the vestibular soft tissues, and becomes a prime target for clastic action, being the only mineralized tissue in the area. www.indiandentalacademy.com
- 59. What could be the reason(s) for Regina T.’s root resorption? Palatal root torque with rectangular wires was implemented, in order to restore proper root angulation. Root torque in this fashion usually generates traumatic forces. All of these unwarranted apical movements could have been avoided by adherence to proper mechanical principles that would have tipped the roots controllably. www.indiandentalacademy.com
- 60. What could be the reason(s) for Regina T.’s root resorption? Therefore, it is logical to conclude that in Regina’s case, excessive root resorption, which ultimately led to the loss of her maxillary six front teeth, was a direct outcome of the application of faulty mechanics by her orthodontist. www.indiandentalacademy.com
- 66. Beck’s conclusions about the etiology of orthodontic root resorption Prime causative factors are endocrinological imbalances that affect bone metabolism, particularly reduced function of the pituitary and thyroid glands, and increased activity of the parathyroid glands. Bone diseases, such as arthritis, are also implicated. www.indiandentalacademy.com
- 67. What should a dentist expect to find when examining a new patient, who had received orthodontic treatment? Resorbed (short) roots, of course! www.indiandentalacademy.com
- 82. The molecular basis of orthodontic root resorption d. The arrival in the strained PDL of immune cells, which interact with all cell types, including odontoclasts, by elaborating inflammatory mediators, such as IL-1α. www.indiandentalacademy.com
- 87. Clinical characteristics which have been identified as high risk factors for orthodontic root resorption www.indiandentalacademy.com