Introduction of mini-clinical evaluation exercise in teaching dental radiology-A pilot study.

INTRODUCTION: Workplace-based assessments are methods that can be applied for assessing competence and performance. One of these methods is the mini-clinical evaluation exercise (mini-CEX). This study was conducted to determine the role of mini-CEX in students' performance assessment on panoramic X-ray reporting at dental radiology course. MATERIALS AND METHODS: A workshop as training for the assessors and the participants was conducted before the primary test. All participants (n = 36) were randomly allocated into six groups. Each group had three seminars in which every student reported a panoramic X-ray. Students were directly observed and rated by an assessor on a modified mini-CEX rating form. Then, a self-assessment of the students and a systematic feedback session were performed. Finally, the students and the assessors were evaluated for the acceptability and satisfaction with this tool. RESULTS: The mean duration of the assessment and the feedback decreased significantly from the first seminar to the third seminar (P < .0001). Comparison of the results of the mini-CEX of all three assessments showed that students displayed a significantly better performance in evaluating the upper jaw and the soft tissue (P < .05). There was no significant improvement for the other aspects of the rating form. Overall, both students and assessors reported a high level of satisfaction in using the mini-CEX rating form. CONCLUSION: Due to the objectivity and transparency of the assessment, the mini-CEX helped to improve the performance on reporting panoramic X-rays. Besides that, the structured feedback had major impact on the improvement. Overall, the assessors and the participants reported a high level of satisfaction using the rating form. Therefore, the mini-CEX may be an effective method for performing workplace-based assessments to evaluate students' performance on reporting panoramic X-rays.

Subtarsal Versus Transconjunctival Approach-Esthetic and Functional Long-Term Experience.

PURPOSE: In addition to the transconjunctival approach, the subtarsal incision is one of the most commonly used procedures for surgical exploration of the orbital floor and infraorbital rim. However, available data are limited regarding validity and long-term esthetic and functional outcomes. The aim of this study was to verify the favorable clinical results of the subtarsal approach and compare these results with the transconjunctival procedure. MATERIALS AND METHODS: Forty-five patients (subtarsal group, n = 30; transconjunctival group, n = 15) were examined 6 to 30 months after surgical intervention using a standardized follow-up. Clinically noted complications, such as paresthesia, epiphora, or ocular foreign body sensation, were scored. Postoperative scar formation was investigated using the modified Vancouver Scar Scale (mVSS) and recorded according to standardized photographic documentation procedures. Photographic images were evaluated in a blinded manner by experts and nonexperts according to fixed criteria. Concomitant photographic evaluation was performed by age- and gender-matched healthy controls. Recorded data analyzed by χ2 test and unrelated samples analyzed by the Wilcoxon-Mann-Whitney test were statistically significant (P = .05). RESULTS: Comparable complication rates were found for the 2 approaches without any significant differences (P = .29). Using the subtarsal approach, discrete scar formation was discerned in 7 of 30 cases. Moreover, categorization by the mVSS showed that, in 93.3% of cases, the scar was measured as unremarkable hyper- or hypotrophy (mean, 1.7 of 10 possible points). No statistically significant differences in conspicuous scars and asymmetries were observed between the 2 approaches in the nonexpert and expert groups (P > .05). CONCLUSION: The results of the present study confirm that the subtarsal approach is a safe and esthetically favorable method.

Esthetic outcome after soft tissue reconstruction of the face using deep dissection and composite facelift technique.

PURPOSE: Large defects in the face resulting from the excision of malignant tumors, trauma, and congenital malformation pose a significant challenge to reconstructive surgeons. Achieving good esthetic and functional outcomes is often very demanding. PATIENTS AND METHODS: A facelift technique was used in 47 patients (25 female, 22 male; age range, 17.5 to 82.3 years; mean age, 49.3 years) to replace lost tissue of the face from 2009 through 2012. The minimum defect size was 2 cm in diameter and the maximum was 8 cm. To achieve tension-free coverage with a reliable blood supply, a deep-plane dissection, including the skin and superficial musculoaponeurotic system (SMAS), was performed. The deep sub-SMAS dissection was extended into the neck and the contralateral part, as needed. A thick flap was created and composite lifting was performed. RESULTS: No significant deformity concerning the lower eyelids, nose, and lip was registered. Most scars could be placed in hidden regions and became undetectable after a year. The facial nerve function remained intact in all patients. CONCLUSION: Using these facelift techniques, including the incision, sub-SMAS dissection for volumetric positioning of the skin, and the SMAS flap, the closure of extensive facial defects with excellent functional and esthetic results is conceivable.

Microsurgical free flap reconstructions of head and neck region in 406 cases: a 13-year experience.

PURPOSE: The reconstruction of extended soft tissue and bony defects in the maxillofacial region with microsurgical flaps is considered to be the therapy of first choice. The aim of this retrospective study was to detect different influencing factors concerning flap survival. MATERIALS AND METHODS: We examined the data of 406 patient cases (121 female and 285 male cases; mean age, 57 years) undergoing reconstruction with a microsurgical flap in our facility between 1998 and 2010. In these cases 326 soft tissue flaps (radial forearm flap, scapula flap, latissimus dorsi flap, anterolateral thigh flap, lateral arm flap, and jejunum flap) and 80 bony flaps (fibula flap and deep circumflex iliac artery flap) were examined. Evaluated parameters were, among others, the timing of reconstruction, defect localization, and recipient vessels used (external vs internal jugular system), as well as anticoagulative management. We statistically analyzed data by means of a χ(2) test, taking account of the odds ratio with P < .05, which was deemed significant. RESULTS: The overall flap survival rate was approximately 92%, without any gender- or age-specific differences. Primary reconstructions proceeded distinctly more successfully than secondary reconstructions (P < .01). Likewise, the defect localization exerted a significant effect on the survival rate (P = .01), with a more caudal localization affecting flap survival positively. Finally, neither the anticoagulation regimen nor the choice of recipient vein system exercised an influence on the survival rate. CONCLUSIONS: Microsurgical tissue transfer is a convenient and reliable method in maxillofacial surgery, provided that one is aware of the determining factors for success.

Variants of the supplying vessels of the vascularized iliac bone graft and their relationship to important surgical landmarks.

The iliac bone crest is one of the most valuable regions for harvesting bone grafts, both vascularized and nonvascularized. Since the first commendable description of this region as a possible source for vascularized bone flaps by Taylor, little relevant information concerning the variations of the deep circumflex iliac vessels and their relationship to the neighboring structures has been published. The purpose of the current study was to examine this region clinically and anatomically, taking into consideration the former description by Taylor. We gathered all our findings on 216 iliac regions and proposed a new classification. In addition we measured the relationships between the deep circumflex iliac artery and important surgical landmarks. A comparison of our finding with other studies showed similarities and differences but was far more complete. Generally (92%) the deep circumflex iliac artery (DCIA) originated from external iliac artery (EIA) behind the inguinal ligament (IL) and passed cranio-laterally toward the anterior superior iliac spine, where it divided into two important branches. Four variations were observed of the DCIA. The deep circumflex iliac vein (DCIV) ran over (82.5%) or under (17.5%) the EIA. The superficial circumflex iliac vein (SCIV) was observed draining into the DCIV in some dissections. Three different variations of the superficial circumflex iliac artery (SCIA) were observed. The anatomical knowledge of these variations and their correlation to important surgical landmarks can help in harvesting the DCIA flap more safely and thus increasing the success rate while reducing donor site morbidity.

The intraoral approach to lateral osteotomy: the role of a diamond burr.

UNLABELLED: Lateral osteotomy is one of the most traumatic but critical steps in rhinoplasty and can dictate the aesthetic and functional outcomes. Many techniques and instruments to perform it have been suggested, with the objectives of increasing predictability, reliability, and easiness of this invasive approach. We used a 1.5-mm diamond burr via an intraoral approach to thin out the base of the nasal wall along the nasofacial crease in 24 patients. This technique was performed in patients seeking primary rhinoplasty (n = 6), correction of cleft nose deformities (n = 4), deformities due to trauma (n = 9), and secondary nose correction (n = 5). A high mucosal incision paranasally allowed easy access to the osteotomy line. The digital in-fracturing could be performed with light pressure and without extensive manipulation at any time during the rhinoplasty. The osteotomy took on average of 14.5 min (range = 11.00-19.80) and endoscopic examination showed no mucosal tearing. Postoperative swelling and hematoma were comparable to those of other techniques. Using a diamond burr via an intraoral approach is an easy, safe, and reliable method leading to predictable outcomes. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266 .

Radiologic and facial morphologic long-term results in treatment of orbital floor fracture with flexible absorbable alloplastic material.

PURPOSE: Although orbital floor fractures are frequently treated by the Ethisorb patch or polydioxanone foil, the utility of these treatments in extensive fractures remains controversial. The purpose of this study was to examine objectively the extent to which such flexible absorbable materials can restore orbital geometry in comminuted and defect fractures. MATERIALS AND METHODS: Twenty-one patients with isolated comminuted or defect fractures of the orbital floor (mean, 4.32 cm(2)) were recruited for this retrospective study. Using an infraorbital approach, 15 patients received an Ethisorb patch, whereas polydioxanone foil (0.25 mm) was used in the remaining cases. Follow-up examinations with cone-beam computed tomography and 3-dimensional facial scanning occurred on average 27.4 months postoperatively. Orbital heights and volumes were measured on the fracture side and compared with the unaffected side. Based on 3-dimensional facial scan data, the ocular bulb position was assessed in the sagittal and vertical directions. For all parameters, the difference between the left and right sides was calculated, which was statistically significant compared with the side difference of an age- and gender-matched control group using unpaired t test (P < .05). RESULTS: No statistically significant differences were observed in any variable between the surgical and control cohorts. A decreased diplopia rate of 38.14% was attained by the surgical intervention. CONCLUSION: The reconstruction of moderate to extensive orbital floor fractures can be provided with polydioxanone foil or the Ethisorb patch without significant changes in orbital geometry.

Anteriorly pedicled retroauricular flap for repair of auricular defects.

The reconstruction of the auricle is aesthetically very demanding. Various techniques have been used depending on the defect size, the defect location, and tissue involved. For better wound control and result predictability, we developed an anteriorly pedicled retroauricular flap. We used this modified double-full-thickness skin graft in three patients. This anteriorly pedicled flap provides a visible wound surface which makes wound dressing easy. The aesthetic outcome is good and predictable. No major complications were encountered during surgery or the healing phase. All patients were satisfied with the outcome. The described method offers a good option for reconstructing larger auricular defects with local tissue.

Computer-assisted mandibular reconstruction with vascularized iliac crest bone graft.

BACKGROUND: The intention of mandibular reconstructive surgery is to achieve maximum possible functionality, which means the restoration of masticatory function and speech with a good esthetic result. METHODS: We compared five computer-assisted mandibular reconstructions with 15 conventional mandibular reconstructions performed using vascularized iliac crest bone grafts. Based on preoperative cone beam computed tomography (CBCT) or CT data imported into the specific surgical planning software, a surgical guide was designed by rapid prototyping that helped to exactly translate the virtual surgery plan into the operation site whereby it fit uniquely to the iliac donor site. The ischemic time of the graft was measured intraoperatively and the difference between the amount of bone removed and the amount of bone required was determined. In addition, 3 months after surgery patients had to score the esthetics of their outer appearance using a visual analog scale. RESULTS: In all patients the graft fit perfectly into the mandibular defect without major adjustments. The time for the shaping process of the transplant and the ischemic time were shorter than in the conventional grafting procedure. The virtual plan reduced the amount of bone removed to the required volume. The patients who underwent computer-assisted reconstruction had a higher degree of satisfaction with their outer appearance. CONCLUSION: Our clinical experience and the collected data suggest that the described method is very promising for optimizing the surgical result of mandibular reconstructions using iliac crest bone grafts and achieving an excellent esthetic outcome. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

Three-dimensional evaluation of postoperative swelling after third molar surgery using 2 different cooling therapy methods: a randomized observer-blind prospective study.

PURPOSE: In most cases, the removal of third molars leads to a significant degree of tissue trauma, resulting in common postoperative symptoms and signs of pain, facial swelling, dysfunction, and limited mouth opening (trismus). The beneficial effects of cold treatment on postoperative swelling, edema, pain, and inflammation, as well as the reduction in bleeding and hematomas, have been described. The aim of the present study was to compare postoperative cooling therapy using cooling compresses with that using the water-circulating cooling face mask by Hilotherm. We recorded the beneficial effects on postoperative facial swelling, pain, trismus, and neurologic complaints. PATIENTS AND METHODS: A total of 30 patients were scheduled to undergo third molar surgery and were divided randomly into 2 groups for treatment with either the Hilotherm or conventional cooling with cooling compresses. Cooling was performed one time for 45 minutes immediately after surgery. Facial swelling was quantified using a 3-dimensional optical scanning technique. The pain and neurologic scores and the degree of mouth opening were observed for each patient. RESULTS: Patients receiving cooling therapy using Hilotherm demonstrated less facial swelling, less pain, a tendency toward fewer neurologic complaints, and were more satisfied than the patients who had received conventional cooling. CONCLUSION: The results of our study have shown that the Hilotherm is more efficient for managing postoperative swelling and pain after the removal of third molars than conventional cooling using compresses.

Effect of the sequence of lateral osteotomy and hump removal on the aesthetic outcome.

BACKGROUND: The authors hypothesized that by modifying the sequence of the rhinoplasty procedure they could avoid comminuted fractures resulting in suboptimal cosmetic results. METHODS: Percutaneous perforated lateral nasal osteotomies were performed in 36 fresh human cadaver heads. In the first group of 19 cadaver heads with big nasal humps, the perforations of the lateral wall were done before and digital infracturing after hump removal in 10 cases (subgroup A1). In the remaining 9 noses with big humps, the perforations and digital infracturing were performed after hump removal (subgroup group A2). In a second group of 17 cadaver heads with small humps, perforations were performed before hump removal in 8 cases (subgroup B1), and in the remaining 9 cases, the lateral walls were perforated after hump removal (subgroup B2). The number of fractured nasal bones was counted. In addition, the size and shape of the nasal bone fragments were described in a blinded fashion. RESULTS: Analysis of the number of fractured nasal bones yields higher rates for "osteotomies after" (8.44 vs. 5.83) and hump size "big" (8.37 vs. 5.76), with some influence of age and gender. CONCLUSIONS: The pattern of fractures after perforations of the lateral wall seems to be more regular if the perforations are done before the removal of bigger humps. In noses with small humps or no hump, no difference is seen regarding the sequence of the perforations in relation to hump removal.

Stability behavior of human tibias after bone removal--comparative examination in 15 cadaver tibia pairs.

PURPOSE: To obtain scientific information on the loss of stability of tibias after removal of bone grafts, we performed a comparative study of 15 freshly preserved adult cadavers to determine the axial breaking loads of the operated and nonoperated tibial heads. MATERIALS AND METHODS: From all cadavers, 1 tibia was randomly selected from which the maximum possible amount of cancellous bone was harvested. The respective contralateral side remained untouched. After maceration, the proximal tibias of each cadaver were removed bilaterally and adjusted to precisely equal lengths. Using a Zwick universal testing machine, the tibial heads were loaded by an axial force until fracture. As the final breaking load, the force value was recorded when the first distinct decrease in the feed-force curve was observed. To compare the mean breaking loads of the operated and nonoperated control tibias, a t test for related samples at P = .05 was used. RESULTS: The mean breaking load for the donor tibias was 3,767 N and was significantly lower than that of the control side with an average of 5,126 N. This finding was independent of age and gender. CONCLUSIONS: Bone removal from the proximal tibia leads to a significant reduction of the axial load capacity. Therefore, we recommend partial loading of up to one half of the body weight during the first postoperative week. For an additional 5 weeks, patients should bear their full body weight on the affected leg only when walking normally and on flat ground.

Evaluation of SPECT/CT in the assessment of inflammatory jaw pathologies.

PURPOSE: Since accurate diagnosis of inflammatory jaw diseases is still challenging, this study investigated the performance of three phase bone scintigraphy including SPECT/CT in the assessment of correct diagnosis and size of the affected bone tissue. METHOD: This retrospective study contained 31 patients with suspected jaw-related osteoradionecrosis, osteomyelitis or medication-related osteonecrosis of the jaw, which underwent 3-phase bone scintigraphy including SPECT/CT. Results were reviewed by two nuclear medicine physicians. Positive cases received surgery; negative ones were followed-up for six months. Both served as reference standard. Inflamed bone length was measured in the SPECT/CT images and postoperatively by a pathologist. RESULTS: 19 out of 20 positive cases and 10 out of 11 negative ones were classified correctly by SPECT/CT (sensitivity 95 %, specificity 91 %, accuracy 94 %, positive predictive value 95 %, negative predictive value 91 %). Regarding the length of affected bone, no significant difference (p = 0.23) could be observed between SPECT/CT and postoperative obtained values. Both correlated significantly (r = 0.86, p = 0.0001). CONCLUSION: SPECT/CT can safely detect different kinds of inflammatory jaw pathologies compared to other conventional imaging modalities. Lack of specificity of conventional scintigraphy ranging from 17 % to 71 % in earlier studies could be improved by adding CT-analysis. Additionally, SPECT/CT assists the surgeon in determining the expansion of the process (with focus on the length) preoperatively and thereby optimizing surgery planning.

Purely cancellous vs. corticocancellous bone in sinus floor augmentation with autogenous iliac crest: a prospective clinical trial.

OBJECTIVES: Among the different graft materials being applied in sinus elevation surgery autogenous bone, especially from the iliac crest, is considered to be the graft of choice. The goal of this prospective study was to investigate whether purely cancellous transplants of this donor site lead to significantly better results regarding bone quantity and quality when compared to corticocancellous iliac bone grafts. MATERIAL AND METHODS: Fifteen patients suffering from extreme maxillary atrophy underwent bilateral sinus floor augmentation with grafts from the iliac crest consisting of purely cancellous bone (PCB) for the right side and a mixture of 50% cancellous and 50% cortical bone for the left side, respectively. Bone samples that were taken during implant insertion were examined histologically for semiquantitative assessment. In addition, bone density was measured histomorphometrically. Data were statistically analyzed by a repeated measures analysis of covariance model and post hoc paired t-tests as well as Pearson's correlation analysis. RESULTS: Semiquantitative analysis of bone quality resulted in comparable results for both graft preparations while bone density was significantly higher in the PCB group. Without consideration of the different transplant groups, there was neither a significant correlation between patients' age and bone density nor bone quality. Differences between the genders could not be observed either. CONCLUSIONS: Because of better bone density, the PCB graft from the iliac crest remains our gold standard. Even in elderly patients, autogenous grafts can be utilized without losses in the properties of the resulting bone.

Comparison of donor-site engraftment after harvesting vascularized and nonvascularized iliac bone grafts.

PURPOSE: The objective of this study is to characterize the donor-site morbidity after harvesting of nonvascularized and vascularized iliac bone grafts. PATIENTS AND METHODS: Clinical data of 353 patients were collected for analysis. In addition, a questionnaire was sent to all patients asking about their perceptions of different parameters. In an individual age-matched layout, we compared 34 patients with nonvascularized iliac bone grafts with 34 patients with vascularized iliac bone grafts. RESULTS: Transplantation of vascularized bone grafts has been increasingly performed at our institution. The mean age was 41.5 years in the nonvascularized group and 48.6 years in the vascularized group. The main reason for the bony defect in the vascularized group was malignancy. The majority of postoperative functional problems were observed in obese patients. No patient had serious or long-term complications at the donor site. The amount of bone graft taken affected postoperative sensitivity disturbance and caused postoperative functional problems and pain. CONCLUSIONS: We conclude that the iliac crest is a suitable site for harvesting both vascularized and nonvascularized bone grafts measuring up to 10 x 3 cm. For larger defects that require a larger bone graft, a vascularized bone graft is more suitable with a better predictable healing capability. No significant differences in donor-site morbidity were found between the vascularized and nonvascularized bone grafts if a similar amount of bone was taken for transplant.

Tibial versus iliac bone grafts: a comparative examination in 15 freshly preserved adult cadavers.

PURPOSE: We compared autogenous bone grafts from the proximal tibia and the anterior iliac crest under standardized conditions with regard to the attainable bone amount and the histological bone density. MATERIAL AND METHODS: In 15 freshly preserved adult cadavers, a corticocancellous block graft from the anterior iliac crest and a purely cancellous transplant from the tibia of the homolateral side were harvested respectively, with the length of the skin incision set at 6 cm for the iliac and at 3.5 cm for the tibial approach. The size of the iliac graft was defined to be between 1/3 and 1/4 of the total iliac length. At the medial tibia the maximum possible amount of cancellous bone was collected after preparation of a cortical lid. For volume determination grafts were cautiously cut up and then put in a water-filled measuring cylinder. In addition, bone density was measured by histomorphometry. The received data were statistically evaluated using the t-test for related samples at P=0.05 and Pearson's correlation analysis. RESULTS: From both donor sites approximately equal amounts of bone were available. This result is neither dependent on age nor on gender. In contrast, bone density turned out significantly higher in the iliac graft, with the difference showing a significant age dependence (r=-0.556). CONCLUSIONS: Provided that no cortical transplants are needed, cancellous tibial bone grafts offer an appropriate alternative to the classic iliac bone graft, especially in elderly patients.

Current concepts in cleft care: A multicenter analysis.

The current surgical techniques used in cleft repair are well established, but different centers use different approaches. To determine the best treatment for patients, a multi-center comparative study is required. In this study, we surveyed all craniofacial departments registered with the German Society of Maxillofacial Surgery to determine which cleft repair techniques are currently in use. Our findings revealed much variation in cleft repair between different centers. Although most centers did use a two-stage approach, the operative techniques and timing of lip and palate closure were different in every center. This shows that a retrospective comparative analysis of patient outcome between the participating centers is not possible and illustrates the need for prospective comparative studies to establish the optimal technique for reconstructive cleft surgery.

Moving the mandible in orthognathic surgery - A multicenter analysis.

Orthognathic surgery has always been a classical focus of maxillofacial surgery. Since more than 100 years, various surgical techniques for mandibular repositioning have been developed and clinically tested. Since the establishment of plate and screw osteosynthesis, orthognathic surgery became more stable and safe. Nowadays, different surgical methods for mobilising the mandible are existing. This international multicenter analysis (n = 51 hospitals) is providing first evidence based data for the current use of different surgical methods. The dominating techniques were Obwegeser/dal Pont (61%) followed by Hunsuck/Epker (37%) and Perthes/Schlössmann (29%). The main osteosynthesis materials were plates (82%), bicortical screws (23.5%), or a combination of both (5.9%). 47% of all centers reported to use several surgical methods at the same time, depending on the anatomical problem and the surgeon's preference. This shows that different surgical methods seem to work as comparable, safe, and reliable procedures in everydays clinical practise. On this basis, further prospective studies could evaluate possible advantages for our patients.

The Volume Behavior of Autogenous Iliac Bone Grafts After Sinus Floor Elevation: A Clinical Pilot Study.

Iliac crest is still regarded as one of the most viable source of autogenous graft materials for extensive sinus floor elevation. Three-dimensional resorption behavior has to be taken into account in anticipation of the subsequent insertion of dental implants. We performed 3-dimensional volume measurements of the inserted bone transplants in 11 patients (6 women and 5 men; mean age = 2.3 years) who underwent bilateral sinus floor elevation with autogenous iliac crest grafts. In order to determine the respective bone graft volumes, cone-beam computerized tomography studies of the maxillary sinuses were carried out directly after the operation (T0), as well as 3 months (T1) and 6 months (T2) postoperatively. The acquired DICOM (Digital Imaging and Communications in Medicine) data sets were evaluated using suitable analysis software. We evaluated statistical significance of graft volumes changes using a linear mixed model with the grouping factors for time, age, side, and sex with a significance level of P = .05. 38.9% of the initial bone graft volume, which amounted to 4.2 cm(3), was resorbed until T1. At T2, the average volume again decreased significantly by 18.9 % to finally reach 1.8 cm(3). The results show neither age nor side dependency and apply equally to both sexes. Without functional load, iliac bone grafts feature low-volume stability in sinus-augmentation surgery. Further clinical and animal studies should be done to detect the optimal timing for implant placement.

Consideration of effect of the amount of mandibular setback on the submental region in the planning of orthodontic-orthognathic treatment.

Aesthetic outcome has gained in importance in the treatment of patients with orthognathic problems. Historically, Class III malocclusions have historically been treated by isolated mandibular setback and maxillary advancement, whereas bimaxillary procedures have recently become the more common option. Functional outcome and stability have been discussed previously. The aim of this observational study was to evaluate the effect of mandibular setback (BSSO) on the cervical region. We studied 38 Class III patients (20 women and 18 men, mean (SD) age 25 (0.8) years) who we identified from our clinical records and who were treated between 1 January 2002 and 30 December 2012 with mandibular setback procedures and followed up for 6 months. To study the effect of the amount of mandibular setback on the aesthetic outcome we have distinguished between patients with less than 5mm setback and those with 5mm or more. In patients whose mandibular setback was less than 5mm there was no significant change in cervical length. However, it decreased significantly in patients in whom the movement was 5mm or more. Postoperatively the lip-chin-throat angle (p=0.02), the length of the lower lip (p=0.002), and the length of the upper lip (p=0.003) from the aesthetic line also differed significantly between the 2 groups. Our observations strongly suggest that all these relations should be considered when treatment is being planned to avoid an unpleasant aesthetic impact on the chin region.