Soft, hard-tissues and pharyngeal airway volume changes following maxillomandibular transverse osteodistraction: Computed tomography and three-dimensional laser scanner evaluation

Bianchi, Francesca Antonella; Gerbino, Giovanni; Corsico, M; Schellino, Eleonora; Barla, Niccolò; Verzé, L.; Ramieri, Guglielmo

doi:10.1016/j.jcms.2016.10.005

Cited by 11 publications

(14 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dogliotti et al reported that maxillomandibular transverse osteodistraction (MMTOD) produced facial changes in the cheek. 15 Efforts have been made to predict quantitative soft tissue deformations after orthognathic surgery. However, shortcomings existed in the prediction of the final position of the lip and cheek areas.…”

Section: Discussionmentioning

confidence: 99%

“…11 Using a 3D imaging system, changes in the cheek were found after orthognathic surgery consisting of preoperative orthodontic treatment and maxillomandibular transverse osteodistraction. 15,16 Since, the current analysis of soft tissues in orthodontics is primarily based on two-dimensional images, [17][18][19] there is little evidence available on how cheek volume, a three-dimensional variable, might influence perception of facial esthetics in orthodontic practice.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Esthetic evaluation of facial cheek volume: A study using 3D stereophotogrammetry

Feng

Yin

et al. 2018

The Angle Orthodontist

View full text Add to dashboard Cite

Objectives: To investigate the influence of cheek volume on facial esthetics judged by orthodontists and non-specialists. Materials and Methods: A 25-year-old female's natural and smiling face was captured by 3D stereophotogrammetry. Cheek volume of the 3D image was altered to different degrees three-dimensionally. For the natural and smiling face, seven groups of facial images were created: decreased grade I/II/III, increased grade I/II/III, and the original one. Thirty orthodontists and 30 nonspecialists were invited to perform esthetic evaluation of the original and transformed images using a questionnaire. Data were calculated with one-way analysis of variance (least significant difference test) and independent samples t test. Results: Compared to nonspecialists, orthodontists gave lower esthetic scores to the decreased grade III facial images (maximum deformation degree: 7.500 mm and 7.327 mm in natural and smiling face-oriented image groups, respectively). The decreased grade III facial images also received the highest age ranks. However, the increased grade III facial images received the lowest scores and highest age ranks from nonspecialists (maximum deformation degree: 6.994 mm and 5.300 mm in natural and smiling face-oriented image groups, respectively) (P < .01). Conclusions: Orthodontists and nonspecialists showed different esthetic evaluation of varied cheek volume. The influence of cheek volume in orthodontic diagnostic analysis needs further consideration.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Esthetic evaluation of facial cheek volume: A study using 3D stereophotogrammetry

Feng

Yin

et al. 2018

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…A variety of ways of assessing oropharyngeal airway changes as a result of orthognathic surgery, such as lateral cephalometry, computed tomography, polysomnography, and nasopharyngoscopy 14,15 are described in relevant literature. In our study, we chose to measure the airspace through lateral normalized cephalometric radiographs, taken while patients were sitting and in the natural position of the head.…”

Section: Discussionmentioning

confidence: 99%

Changes in head posture, hyoid bone position and airway dimensions after orthognatic surgery

Azevedo¹,

Feitoza

Vargas

et al. 2018

Braz. J. Oral Sci.

View full text Add to dashboard Cite

Mandibular/bimaxillary advancement surgery is described as a potential means of increasing the oropharyngeal airspace , provided a significant improvement in breathing capacity. Aim: To evaluate postural changes suffered in the positioning of the head and the hyoid bone, dentofacial deformity patients undergoing orthognathic surgery with consequent dimensional changes of oropharyngeal airspace. Methods: We evaluated the archived records of patients with postoperative 6 months minimum, being used as criteria for selecting individuals with dental class II malocclusion and facial Pattern II, jaw or maxilomandibular deficiency, patients undergoing orthodontic-surgical treatment through mandibular advancement or of both bony bases, associated or not to genioplastia. Twenty-eight patients were part of the sample and were evaluated by means of lateral radiographs in lateral standard digitized, in three distinct periods: pre-operative, immediate postoperative period and late postoperative period (minimum 6 months). 12 linear measures and two angular cephalometric analysis were used in this research. Results: With the surgery, there was an average of mandibular advancement 6, 76 mm, while remaining stable in the long-term follow-up period; the hyoid bone moved onward and upward, extending your movement in the post-operative. The cervical region presented minimal movement of the head extension in the immediate post operative with almost total returns the position of the head in the post-operative. The surgical movement of oropharyngeal air space was in the same direction of the mandibular movement, but to a lesser extent (1,88 -2,76 mm). In the post-operative period was a late partial reduction of the diameter of the air space between 34-56% of gain, representing an apparent accommodation of this anatomical region soft tissue. Conclusion: Orthognathic surgery of mandibular advancement or bimaxillary promotes significant changes in aesthetics, in the position of the hyoid bone and upper airway dimensions, getting better quality of life to these patients.

show abstract

“…When evaluating the morphologic changes of soft tissue, the stereophotogrammetry technique was found to be more reliable and accurate than the twodimensional and laser scanning methods. 15 Only a few clinical studies have evaluated soft tissue changes after treatment with maxillomandibular widening using three-dimensional (3D) imaging systems such as conebeam computed tomography, 16,17 laser scanner, 17 and stereophotogrammetry. 18 To date, no study has evaluated MMDO with tooth-borne distraction to investigate the clinical outcomes on soft tissue using the 3D stereophotogrammetry technique.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional soft tissue evaluation after rapid maxillary expansion and mandibular midline distraction osteogenesis

Öztürk¹,

Malkoç²,

Yolcu³

et al. 2021

The Angle Orthodontist

View full text Add to dashboard Cite

Objectives To evaluate the effects of rapid maxillary expansion (RME) and mandibular midline distraction osteogenesis (MMDO) on facial soft tissues using three-dimensional (3D) images. Materials and Methods A total of 20 patients (average age 15.86 ± 2.17 years) were treated with RME and MMDO using tooth-borne distractors. Three-dimensional photographs of each patient were taken with a stereophotogrammetry system at baseline (T0), at the end of the distraction period (T1), and at the end of the consolidation period (T2). All data were analyzed using a dependent-samples t-test at a significance level of 5%. Results Total and lower face height increased after MMDO (P < .05). Nasal and mouth width increased after RME as compared with baseline (P < .05). The labiomental angle increased at T1 and decreased at T2 (P < .05). After MMDO, the convexity angle increased while the mandibular angle decreased (P < .05). Upper and lower lip angles increased after RME (P < .05). The distance from the lower lip to the E plane increased after MMDO and decreased after RME (P < .05). Conclusions The MMDO and RME procedures provide an efficient nonextraction treatment alternative for transverse maxillomandibular deficiency. MMDO may improve the facial soft tissue profile in the transverse and vertical axis of the mandibular region.

show abstract

Soft, hard-tissues and pharyngeal airway volume changes following maxillomandibular transverse osteodistraction: Computed tomography and three-dimensional laser scanner evaluation

Cited by 11 publications

References 40 publications

Esthetic evaluation of facial cheek volume: A study using 3D stereophotogrammetry

Esthetic evaluation of facial cheek volume: A study using 3D stereophotogrammetry

Changes in head posture, hyoid bone position and airway dimensions after orthognatic surgery

Three-dimensional soft tissue evaluation after rapid maxillary expansion and mandibular midline distraction osteogenesis

Contact Info

Product

Resources

About