Orthognathic Surgery of the Mandible

Bahmanyar, Sara; Namin, Arya W.; Weiss, Robert O.; Vincent, Aurora G.; Read-Fuller, Andrew; Reddy, Likith V.

doi:10.1055/s-0041-1735309

Cited by 8 publications

(3 citation statements)

References 32 publications

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“…Orthognathic surgery has become the standard procedure for the management of dentofacial deformities involving abnormal positions of the skeletal bases. Le-fort 1 osteotomy and the bilateral sagittal split osteotomy (BSSO) have become the workhorses for repositioning the maxillary and mandibular skeletal bases respectively ( 1 , 2 ). All orthognathic surgeries are clean-contaminated surgeries with infection rates of 10-15% owing to the high microbial load of the oral cavity, nasal cavity, and maxillary sinuses ( 3 ).…”

Section: Introductionmentioning

confidence: 99%

Impact of long-term vs. short-term and single day vs. single dose of antibiotic prophylaxis in reducing infection rates after orthognathic surgery: a systematic review and meta-analysis

Tang,

Wen,

Yang

2024

Med Oral

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Background This review was designed to examine the effect of long-term (≥2 days) vs. short-term (1 day) and single-day vs. single preoperative doses of antibiotic prophylaxis on surgical site infection (SSI) rates after orthognathic surgery. Material and Methods PubMed, Web of Science, Embase, and Scopus were searched for randomized controlled trials (RCTs) without any date or language restriction till 1st September 2023. SSI rates were pooled to generate risk ratio (RR). Results Eight RCTs comparing long-term vs. short-term and three RCTs comparing single day vs. single preoperative dose of antibiotic prophylaxis were included. Meta-analysis showed that the use of long-term antibiotic prophylaxis significantly reduced the risk of SSI after orthognathic surgery as compared to short-term antibiotics [RR:0.42 (95% CI: 0.23, 0.76) I2=0%]. Meta-analysis also noted that patients receiving a single day of antibiotic prophylaxis had significantly reduced risk of SSI as compared to those receiving only a preoperative single dose of antibiotics [RR:0.28 (95%: 0.09, 0.82) I2=0%]. Conclusions Evidence from a limited number of RCTs with moderate to high risk of bias shows that two to seven days of long-term antibiotic prophylaxis reduces the risk of SSI as compared to single-day antibiotic therapy. Also, a single day of antibiotics may be more beneficial than a single pre-operative dose of antibiotic. Key words: Penicillin, antimicrobials, infection, sagittal split osteotomy.

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Section: Introductionmentioning

confidence: 99%

Impact of long-term vs. short-term and single day vs. single dose of antibiotic prophylaxis in reducing infection rates after orthognathic surgery: a systematic review and meta-analysis

Tang,

Wen,

Yang

2024

Med Oral

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“…1 Orthognathic surgery performed in conjunction with orthodontic treatment is commonly performed to correct skeletal irregularities and realign the maxillomandibular relationship, to improve occlusal function and facial esthetics. 2,3 Through this therapeutic approach, important dentofacial changes are achieved, which not only correct functional and aesthetic aspects, but also yield emotional benefits. 4 It is common for patients to report improvement in their self-esteem, self-image, and social integration after undergoing this surgery.…”

Section: Introductionmentioning

confidence: 99%

Body mass index and weight loss in patients submitted to orthognathic surgery: a prospective study

BENATO,

MIOTTO,

MOLINARI

et al. 2023

Dental Press J. Orthod.

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Objective: To compare the body mass index (BMI) and the weight loss (WL) in patients with dentofacial deformities who underwent monomaxillary versus bimaxillary orthognathic surgery. Materials and Methods: This prospective longitudinal study included 69 patients with dentofacial deformities who underwent surgical orthodontic treatment. Patients were divided into two groups according to the type of orthognathic surgery: monomaxillary or bimaxillary. A preoperative nutritional assessment based on BMI was performed; the percentage of involuntary WL between the preoperative and postoperative periods was also calculated. Data were collected at preoperative and 10, 40, and 90 days postoperative (PO). Statistical analysis was performed using SPSS 17.0 (IBM Corp., Armonk, NY, USA), and data are reported with 95% confidence interval. Results: According to BMI, patients who underwent monomaxillary surgery presented: underweight = 2.6%, normal weight = 51.3%, overweight = 35.9%, and obese = 10.3%. The subjects who underwent bimaxillary surgery presented: normal weight = 43.3%, overweight = 36.7%, and obese = 20%. BMI was similar between the groups at all time points (preoperative, p= 0.237; 10 days PO, p= 0.325; 40 days PO, p= 0.430; and 90 days PO, p= 0.609). All patients lost weight postoperatively, and WL was similar among the PO measurements (p= 0.163). Conclusions: Although both monomaxillary and bimaxillary orthognathic surgeries resulted in WL and lower BMI, there was no statistically significant difference in these metrics between the two types of surgery.

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“…Long-term stability is affected by factors such as patient-related factors (neuromuscular adaptation, neuromuscular adaptation, age, masticatory function, pressure due to the adaptive position of the tongue, abnormal behavior of the oral muscle), orthodontic treatment (pre-and postoperative to create stable occlusion), surgical factors (surgical experience, condylar repositioning in the glenoid fossa and fixation material) depend (6,7). Before the surgery, orthodontic treatment is used due to arch coordination to maximize the optimal surgical position of the jaw and align the teeth, and after the surgery, it is done to improve occlusion and retention (8,9). Evidence shows that dental changes after surgery generally occur two to six years, and studies with a long follow-up period should be performed (6).…”

Section: Introductionmentioning

confidence: 99%

Evaluate the long-term hard tissue stability and relapse factors following surgical–orthodontic treatment

Khodaverdi¹,

Zandi²,

Jalilian³

et al. 2022

ijhs

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Background and aim: the present study was conducted with the aim of evaluating the long-term hard tissue stability and relapse factors following surgical-orthodontic treatment. Method: Databases of PubMed, Scopus, Web of Science, EBSCO, ISI Web of knowledge and Embase were searched for systematic literature until July 2022. 95% confidence interval for mean differences with fixed effect model and Inverse-variance method were calculated. To deal with potential heterogeneity, random effects were used and I2 showed heterogeneity. Meta-analysis was performed using Stata/MP v.17 software. Result: In the initial review, duplicate studies were eliminated and abstracts of 201 studies were reviewed, the full text of 38 studies was reviewed by two authors, finally, ten studies were selected. Overbite changes, Upper incisor changes and Lower incisor changes after combined orthodontic and orthognathic surgical treatment in class II and III patients during long-term follow-up was 1.80 (MD 95% CI; 1.43 and 2.17), -0.51 (MD 95% CI; -1.08 and 0.05) and 0.27 (MD 95% CI; 1.03 and 1.58), respectively. Conclusion: Based on the findings of the present study, in patients with skeletal class II and III, the results of long-term dental changes after combined orthodontic and orthognathic surgery are very diverse.

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Orthognathic Surgery of the Mandible

Cited by 8 publications

References 32 publications

Impact of long-term vs. short-term and single day vs. single dose of antibiotic prophylaxis in reducing infection rates after orthognathic surgery: a systematic review and meta-analysis

Impact of long-term vs. short-term and single day vs. single dose of antibiotic prophylaxis in reducing infection rates after orthognathic surgery: a systematic review and meta-analysis

Body mass index and weight loss in patients submitted to orthognathic surgery: a prospective study

Evaluate the long-term hard tissue stability and relapse factors following surgical–orthodontic treatment

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