Alveolar bone remodeling during maxillary incisor intrusion and retraction

Hong, Seok Yoon; Shin, Jeong Won; Hong, Christine; Chan, Vania; Baik, Un-Bong; Kim, Young Ho; Chae, Hwa Sung

doi:10.1186/s40510-019-0300-2

Cited by 32 publications

(21 citation statements)

References 18 publications

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“…Not much is known about the effects of the vertical change of the incisor after orthodontic movement on the periodontium; however, this aspect may be important in evaluating vertical bone loss. 41 A previous study reported a 5-mm extrusion in the projected incisors that developed dehiscence. 8 In the current study, the MIH measurement was designed to evaluate whether the incisors' extrusion or intrusion would cause any changes in thickness and height to the bone ridge and the interdental septum, as well as in F-CEJ-MBC and L-CEJ-MBC.…”

Section: Discussionmentioning

confidence: 95%

Bone changes in the mandibular incisors after orthodontic correction of dental crowding without extraction: A cone-beam computed tomographic evaluation

Valerio¹,

Cardoso

Araújo

et al. 2021

Imaging Sci Dent

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Purpose This study aimed to evaluate changes of the alveolar bone and interdental bone septum of the mandibular incisors through cone-beam computed tomography (CBCT) after orthodontic treatment of mandibular dental crowding without dental extraction. Materials and Methods The sample consisted of 64 CBCT images (32 pre-treatment and 32 post-treatment) from 32 adult patients with class I malocclusion and an average age of 23.0±3.9 years. The width and height of the alveolar bone and interdental septum, the distance between the cementoenamel junction (CEJ) and the facial and lingual bone crests, and the inclination of the mandibular incisors were measured. Results The distance between the CEJ and the marginal bone crest on the facial side increased significantly ( P <0.05). An increased distance between the CEJ and the bone crest on the facial and lingual sides showed a correlation with the irregularity index ( P <0.05); however, no significant association was observed with increasing mandibular incisor inclination ( P >0.05). The change in the distance between the CEJ and the marginal bone crest on the facial side was correlated significantly with bone septum height ( P <0.05). Conclusion Bone dehiscence developed during the treatment of crowding without extraction only on the incisors' facial side. Increasing proclination of the mandibular incisor was not correlated with bone dehiscence. The degree of dental crowding assessed through the irregularity index was associated with the risk of developing bone dehiscence. The interdental septum reflected facial marginal bone loss in the mandibular incisors.

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Section: Discussionmentioning

confidence: 95%

Bone changes in the mandibular incisors after orthodontic correction of dental crowding without extraction: A cone-beam computed tomographic evaluation

Valerio¹,

Cardoso

Araújo

et al. 2021

Imaging Sci Dent

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“…These changes can be explained by the alveolar bone remodeling, which usually follows the orthodontic tooth movement. These changes were reported in numerous studies that indicated possible bone remodeling in adult patients after orthodontic treatment [ 16 – 19 ].…”

Section: Discussionmentioning

confidence: 58%

Nonsurgical Treatment of Class III Malocclusion with Both Anterior and Posterior Crossbites Combined with Impacted and Congenitally Missed Teeth

Alogaibi

Afify

Al-Fraidi³

et al. 2020

Case Reports in Dentistry

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Class III malocclusions present a great challenge for many orthodontists, especially if malocclusions are found in adult patients and alongside other dental problems. This case report shows an adult patient with a skeletal class III anterior crossbite, a unilateral posterior crossbite on the right side, a congenital absence of both lateral incisors and retained deciduous teeth, and shift in the lower midline. The upper retained deciduous teeth and lower premolars were extracted. Leveling and alignment were initiated. Build-up composite resin placed on the first molars allowed for bite opening. The crossbites were corrected by using sequentially larger archwires combined with class III elastics until both the anterior and posterior crossbites were corrected. The impacted upper right canine was exposed using the closed eruption technique and leveled into the position of the upper lateral incisor. Miniscrews were utilized to close the residual spaces. Both canines were reshaped to simulate the upper lateral incisors. At the end of the treatment, good esthetic and functional results were obtained. In conclusion, orthodontic camouflage can be a viable option for treating patients with multiple skeletal and dental problems.

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“…The purpose of the present study was to evaluate the change in palatal alveolar bone thickness and the factors affecting the resorption of the palatal alveolar bone caused by tooth movement of the maxillary central incisors. A previous study indicated that while upper incisors were intruded and retracted simultaneously, various labial side response was described 23 . In the present study, the difference between labial and palatal response was evaluated.…”

Section: Discussionmentioning

confidence: 99%

A study on the morphologic change of palatal alveolar bone shape after intrusion and retraction of maxillary incisors

Son

Kim

Hong

et al. 2020

Sci Rep

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The purpose of this study is to evaluate the changes in the palatal alveolar bone thickness and find the factors related to the resorption of the palatal alveolar bone caused by tooth movement after the maxillary incisors were retracted and intruded during orthodontic treatment. The study group comprised of 33 skeletal Class II malocclusion patients who underwent extraction for orthodontic treatment. Palatal alveolar bone thickness changes and resorption factors were identified and analyzed. The changes of maxillary central incisors and palatal alveolar bone thickness were measured, and the corresponding sample t test was performed using SPSS (IBM SPSS version 22). The amount of palatal alveolar bone resorption was measured and various parameters were analyzed to determine which factors affected it. Correlation analysis adopting the amount of palatal alveolar bone resorption as a dependent variable demonstrated that the SNB, mandibular plane angle, and the inclination of the maxillary central incisor were significantly correlated with before treatment. On the other hand, mandibular plane angle, angle of convexity, the inclination of the upper incisor, and the occlusal plane (UOP, POP) were significantly correlated with post-treatment. In addition, the variables related to palatal contour (PP to PAS, SN to PAS, palatal surface angle) and occlusal planes (UOP/POP) were significantly correlated with the difference in palatal bone resorption. During initial diagnosis, high angle class II with normal upper incisor inclination can be signs of high-risk factors. In addition, maintaining the occlusal plane during treatment helps to prevent palatal bone loss. Patients seeking orthodontic treatment to resolve bimaxillary protrusion usually desire to change facial features which is important in establishing confidence and improving quality of life. To resolve these chief complaints, extraction of 4 premolars is usually required and surgery may also be utilized in cases when orthodontics only treatment is inadequate. Recent universalization of the temporary anchorage devices (TADs) and mini-plates has led to more stable and esthetic facial improvements through skeletal anchorage in orthodontic treatment 1-3. However, if there is excessive lingual inclination of anterior teeth as a result of putting too much emphasis on the esthetic aspect without considering the alveolar bone remodeling response following orthodontic tooth movement, unwanted iatrogenic sequelae such as root resorption, alveolar bone loss and fenestration, dehiscence and gingival recession would likely occur 4-10. Orthodontic tooth movement is a process where application of a force induces bone resorption on the pressure side and bone apposition on the tension side. Alexder et al. mentioned that a basic axiom in orthodontics is "Bone traces tooth movement, " suggesting that whenever orthodontic movement occurs, the bone around the alveolar socket will remodel to the same extent 11. However, there is evidence that this premise does not hold true in the anterio...

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Alveolar bone remodeling during maxillary incisor intrusion and retraction

Cited by 32 publications

References 18 publications

Bone changes in the mandibular incisors after orthodontic correction of dental crowding without extraction: A cone-beam computed tomographic evaluation

Bone changes in the mandibular incisors after orthodontic correction of dental crowding without extraction: A cone-beam computed tomographic evaluation

Nonsurgical Treatment of Class III Malocclusion with Both Anterior and Posterior Crossbites Combined with Impacted and Congenitally Missed Teeth

A study on the morphologic change of palatal alveolar bone shape after intrusion and retraction of maxillary incisors

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