Robot-assisted repair of ureteral stricture.

As robot-assisted laparoscopic techniques continue to advance, becoming increasingly complex and refined, there has been significant progress in the minimally invasive treatment of ureteral strictures. This abstract aims to provide an overview and description of various surgical techniques that utilize robots for repairing ureteral strictures. We have summarized the progression of these surgical methods and highlighted the latest advancements in the procedures. When compared to open surgery, robot-assisted reconstruction techniques demonstrate superior functional outcomes, fewer postoperative complications, and a faster recovery in the treatment of ureteral strictures. This abstract aims to provide an overview and description of various surgical techniques utilizing robots to repair ureteral strictures. Robotic ureteral stricture correction has emerged as a valuable therapeutic option, particularly when endoscopic procedures are not feasible. Compared to traditional open surgery, robotic methods exhibit superior therapeutic effectiveness, fewer postoperative complications, and accelerated recovery. Reconstructive procedures such as reimplantation, psoas hitch, Boari flap, ureter-to-ureter anastomosis, appendix graft, buccal mucosa graft (BMG), ileal transplantation, or kidney autotransplantation can be performed depending on the extent and location of the stricture. Robotic surgical techniques also offer advantages, such as an expanded field of vision and the incorporation of supplementary technologies such as FireflyTM, indocyanine green (ICG), and near-infrared fluorescence (NIRF) imaging. However, further long-term, multicenter investigations are necessary to validate the positive findings reported in existing case series. Compared with open surgery, robot-assisted reconstruction techniques yield superior functional outcomes, fewer postoperative complications, and accelerated recovery for the treatment of ureteral strictures.

[A new surgical strategy for T4 stage posterior buccal carcinoma: anatomical unit resection].

Objective: To investigate the effect of anatomical unit resection on the overall survival rate of patients with T4 stage posterior buccal carcinoma. Methods: We conducted a retrospective study on 79 patients with T4 stage posterior buccal squamous cell carcinoma underwent radical surgery for buccal mucosa cancer and reconstruction with free anterolateral thigh flap in the Department of Oral and Maxillofacial Surgery, the Second Xiangya Hospital, Central South University from March 2014 to December 2019. The 74 patients were males and the 5 patients were females, aged from 28 to 72 years old. The 40 patients in control group underwent traditional extended resection (1.5-2.0 cm safe margin), and 39 patients in the experimental group underwent anatomical unit resection. The clinicopathological parameters of patients were collected and followed up regularly. The overall survival rate was assessed by Log-rank and Cox proportional risk regression model. Multivariate analysis was performed by linear regression model. Results: There were significant differences between experimental group and control group in overall survival rates (61.53% vs 27.50%, χ2=6.624, P=0.010) and local disease control rates (74.36% vs 27.50%, χ2=17.350, P<0.001). Multiple linear regression analysis showed that local disease control rate was significantly correlated with anatomical unit resection (t=3.880, P<0.001) and lymph node metastasis (t=2.619, P=0.011), and also Cox proportional hazards regression model analysis identified that overall survival rate was significantly correlated with anatomical unit resection (Z=2.421, P=0.016) and lymph node metastasis (Z=2.793, P=0.005). Conclusion: For posterior buccal carcinoma with multiple anatomical units involved, anatomical unit resection can significantly reduce local recurrence and improve overall survival rate of patients.

A novel surgical technique to resolve mucosal fenestration of a root apex: Apical tunnel surgery: A case report.

RATIONALE: Endodontic surgery, which includes apex resection, retro-fill and some regeneration procedures, is a traditional way to deal with apex fenestration. The endodontic surgery could bring large flap, curtate root length, non-healing mucosa and soft tissue deficiency in the apex area. Other treatment options might be considered according to different etiological factors. Mucogingival surgery provides some ideas in accumulation of soft and hard tissues, especially some unique methods such as "tunnel technique" bringing us a view of minimal invasive surgery approach. A novel surgery named "apical tunnel surgery" was reported here to resolve a root apex exposure with the tunnel-like technique. PATIENT CONCERNS: A young female complained about root exposure of upper right anterior tooth without history of trauma or orthodontic treatment. DIAGNOSIS: The intraoral examination revealed a buccal root apex exposure about 3mm in diameter of #12 (FDI teeth numbering system). The tooth was slightly dark with Class 1 mobility. The periodontal situation was good and the occlusion check revealed no traumatic bite on #12. The cone-beam computed tomography (CBCT) showed a bone fenestration from the buccally lower 1/2 root surface to the apex and bone absorption around the apex. It also revealed a bone contour deficiency in #12 area. INTERVENTIONS: Root canal treatment, root surface debridement, and soft tissue combined with hard tissue accumulation were carried out in one tunnel-like surgery. OUTCOMES: Examination of 12-month follow-up showed a healed and thickened mucosa in the buccally apical region and CBCT showed the continuous lamina dura occupied the buccal aspect of #12 root apex. LESSONS: This new apical tunnel surgery provided soft and hard tissue accumulation in one minimal invasive way in the apex exposure case caused by bone fenestration and thin mucosa.

Primary Tumour Detection in Carcinoma of Unknown Primary with Transoral Robotic Surgery (TORS) Tongue Base Mucosectomy: A Meta-analysis.

BACKGROUND: Head and neck carcinoma of unknown primary (CUP) represents a challenging diagnostic process when standard work-up fails to identify the primary tumour site. The aim of this systematic review and meta-analysis was to evaluate the diagnostic utility and complication profile of transoral robotic surgery (TORS) tongue base mucosectomy (TBM) in the management of CUP. PATIENTS AND METHODS: An electronic database search was performed in the EMBASE, MEDLINE, PubMed and Cochrane databases. A meta-analysis of proportions was performed to obtain an estimate of the overall proportion for the detection and complication rates. RESULTS: Nine studies representing 235 patients with CUP who had TORS TBM were included in the final analysis. The overall pooled tumour detection rate was 66.2% [95% confidence interval (CI) 56.1-75.8]. The incidence of tumour detection in human papilloma virus (HPV)-positive cases (81.5%, 95% CI 60.8-96.4) was significantly higher than HPV-negative cases (2.3%, 95% CI 0.00-45.7). Weighted overall complication rate was 11.4% (95% CI 7.2-16.2). The majority were grade I or II (80%) according to the Clavien-Dindo classification. CONCLUSIONS: This meta-analysis suggests TORS to be safe and effective in localising the primary tumour site in patients with CUP. While the current data supports the use of TORS in patients who are HPV positive, larger numbers of HPV-negative cases are required to determine the true diagnostic effect with TORS before any valid conclusions can be inferred in this particular subgroup. Further research should focus on high quality prospective trials with stringent methodological work-up to minimise heterogeneity and allow for more accurate statistical analysis.

Impact of vertical alveoloplasty on changes in keratinized mucosa width following full-arch immediate implant placement and rehabilitations: A prospective case series.

PURPOSE: This prospective case series aimed to investigate the effect of vertical alveoloplasty on the changes in keratinized mucosa width (KMW) following full-arch immediate implant placement and rehabilitation. MATERIALS AND METHODS: A total of 17 potential edentulous patients were enrolled and received implant placement and full-arch implant-supported immediate rehabilitations. The main outcome was to analyze the effect of vertical alveoloplasty on the changes in KMW. The amount of vertical alveoloplasty during implant surgery as well as the changes in KMW at buccal aspects from the day of surgery to 6 months post-surgery were recorded on the implant-level using a periodontal probe. The secondary outcome was to analyze the other possible factors that affected the changes in KMW. The included factors were the initial KMW, the distribution of implants in the maxilla and mandible, the distribution of implants in the anterior and posterior regions, the distribution of implants in extraction sockets and healed ridges, and gender. Mann-Whitney non-parametric tests and multiple linear regression adjusted by generalized estimating equations (GEE) were used to statistically analyze the data. RESULTS: A total of 121 implant positions were analyzed. The KMW was 4.1± 2.0 mm on the day of the surgery and 4.1± 1.7 mm 6 months post-surgery. The mean changes in KMW following 6 months were -0.1± 1.6 mm (p = 0.824). From the results of GEE, the vertical amount of alveoloplasty had no significant effect on changes in KMW. Both initial KMW and the distribution of implants in the anterior and posterior regions had significant impacts on the changes in KMW (p < 0.0001). CONCLUSION: The amount of vertical alveoloplasty during implant surgery has no significant impact on the KMW. The KMW remained stable from baseline to 6 months after alveoloplasty, implant placement, and immediate rehabilitations in potential edentulous arches. The initial KMW and the distribution of implants in the anterior and posterior regions were the possible factors affecting changes in KMW.

The features of the reparative regeneration of an oral mucosa wound created under the exposure of a laser at a wavelength of 445 nm (a pilot study).

In clinical practice, an innovative laser technology that provides contactless preparation of soft tissues with a wavelength of 445 nm has been introduced. This study aimed to investigate the morphological changes in the oral mucosa when exposed to laser radiation at a wavelength of 445 nm in the ablation mode.An experimental study was conducted to analyze the dynamics of reparative regeneration in the wound caused by that particular type of radiation, utilizing the procedure of lower lip frenuloplasty as an illustration. 48 sexually mature male laboratory rats were chosen as the research object. The procedure of preparing the oral vestibule was executed by employing a contactless laser beam with a wavelength of 445 nm and a power of 0.7 W in continuous mode (CW) and an uninitiated fiber.Histological examination showed that 25 min after the surgery, there were large areas of coagulation necrosis in the oral mucosa in the area affected by the blue laser. In 48 h, the area of necrosis decreased both in size and depth. By the 7th day after the surgery, the necrotic masses had grown into the connective tissue, while marginal regeneration of the epithelium was noted. By the 14th day, the wound surface was completely epithelialized, represented by fibrous scar tissue. Clinically, around the mandibular incisors, there was a wide area of attached keratinized gingiva.The findings of histological examination indicate a necrosis of coagulation type in the region of tissue ablation and also show the absence of phase II of the inflammatory response (the stage of exudation), which expedites the process of epithelialization of the oral mucosa wound.

Impact of peri-implant keratinized mucosa width on the long-term reconstructive outcomes of peri-implantitis: A retrospective analysis with a follow-up up to 10 years.

PURPOSE: To investigate the effect of mid-buccal peri-implant keratinized mucosa width (KMW) ≥2 mm or peri-implant KMW >0 mm and <2 mm on the long-term outcomes of peri-implantitis reconstructive treatment. MATERIALS AND METHODS: Twenty-nine patients (40 implants; mean follow-up: 9.2 ± 1.4 years) with at least one implant affected by peri-implantitis and surgically treated through a reconstructive procedure followed by a submerged healing were included. Patients were categorized according to their initial KMW: Group 1 (KMW ≥2 mm) and Group 2 (KMW >0 mm and <2 mm). Peri-implant clinical and radiographic parameters and a dedicated composite outcome were assessed at different follow-up visits during supportive peri-implant therapy for up to 10 years. Regression analyses were utilized to identify possible risk/predictive indicators for probing pocket depth (PPD) change and treatment success at the latest follow-up. RESULTS: The mean PPD did not exhibit any statistical difference from the baseline to the latest follow-up between the groups at both patient and implant levels. Long-term treatment success was 46.6% (Group 1) and 42.6% (Group 2) at patient level, it was 42.8% (Group 1) and 33.3% (Group 2), respectively, at implant level (p > 0.05). Group 1 demonstrated significantly higher vertical defect depth reduction than Group 2 (p = 0.018). Presence of buccal bony wall and mean PPD at the baseline were found to be associated with mean PPD change, while KMW at 6 months following surgery was identified as the only significant indicator for treatment success (p < 0.05). CONCLUSION: Implants with KMW ≥2 mm did not present significantly better long-term clinical outcomes following reconstructive therapy than those exhibiting KMW >0 mm and <2 mm. However, KMW values at the end of healing phase following a submerged approach had a significant impact on long-term treatment success.

[Suture techniques and materials used in oral surgery]. / Hechttechnieken en -materiaal in de tandheelkunde.

This article highlights the importance of proper suturing of mucosa, gingiva, and skin after surgical procedures and trauma. Several factors play a role in promoting good healing, including optimal tension on the sutured wound, adequate blood flow, and careful selection of suture materials. The selected suture material depends on various factors, such as type of tissue, location of the wound, and healing time. Different suture techniques are discussed, including interrupted sutures, continuous sutures, horizontal and vertical mattress sutures, each with their own specific applications and benefits. Skillfulness in suture techniques and appropriate material selection contribute to effective wound healing and optimal outcomes.

Reconstruction of oral mucosal defects with regenerative dermal matrix after T1-T2 squamocellular carcinoma resection.

OBJECTIVE: Resection of tumors of oral cavity usually causes short- or long-term sequelae such as chewing, speech and swallowing impairment. To preserve this function it is necessary to maintain the lining of the oral cavity, the mobility and sensitivity of the tongue. Reconstructive options for oral mucosal defects resulting from tumor resection included primary closure, mucosal and skin grafts, pedicle and microvascular free flaps, and dermal matrix. STUDY DESIGN: Retrospective study on patients undergoing reconstruction of intraoral defects, after removal of T1, T2 malignant tumors, by placement of bilayer dermal matrix. METHODS: From 2021 to 2022, 47 patients with oral mucosa defects after removal of squamous cell carcinoma were treated. All patients were affected by a T1-T2 squamous cell carcinoma. For each patient, data were collected regarding the site of the disease, the initial staging, the size of the surgical defect, the complications and the outcome months after the operation. RESULTS: In all treated cases the surgical defect involved the mucosa of the cheek, the oral floor or the tongue with an average size of 5.45cm2. Patients who underwent this type of reconstruction benefited from excellent healing of intraoral wounds and good restoration of oral function 6 months after surgery. Out of the total number of patients, membrane attachment failure was reported in only two cases. CONCLUSION: As emerges from the data reported in our study, the dermal matrix represents a valid alternative in oncological reconstructive surgery for small/medium-sized intraoral mucosal defects because it allows re-epithelialization of the wound.

Repair of buccal mucosa and floor of mouth defects using keystone design perforator island flap.

OBJECTIVE: To assess the feasibility of utilizing the keystone design perforator island flap (KDPIF) for the repair of small to medium-sized defects in the buccal mucosa and floor of mouth (cT1-2 stage tumor). STUDY DESIGN: We conducted a retrospective analysis of eight patients who underwent KDPIF to address oral defects at the Affiliated Hospital of Qingdao University between June 2021 and September 2022. Patient information, including medical history, defect site, flap size, operative time, hospital stay, complications, and postoperative recovery of oral function, was comprehensively evaluated. RESULTS: Eight patients (6 females and 2 males) underwent reconstruction using KDPIF. The mean operation time was 58.5 minutes (55-63 minutes), with an average length of stay of 3.5 days (3-5 days). None of the 8 cases (100%) exhibited flap splitting necrosis or infection. Moreover, no scar contracture was observed, and oral functions, including the degree of opening, type of opening, tongue mobility, speech function, and swallowing function, were successfully restored. One patient (12.5%) experienced bleeding from the incision on the first postoperative day, but following compression, hemostasis was achieved, and the incision healed well. CONCLUSIONS: KDPIF demonstrates technical feasibility and suitability for repairing small to medium-sized buccal mucosa and floor of mouth defects (cT1-2).

The distance of insertion points from wound margins in interrupted and vertical mattress sutures influences the tensile load capacity: An in vitro experimental study.

AIM: To determine the tensile load capacity (TLC) and the tearing characteristics for interrupted and vertical mattress sutures with different insertion points from the wound margin, and the effect of the bite size when using vertical mattress sutures. MATERIALS AND METHODS: A total of 120 gingiva and lining mucosa samples obtained from pig jaws were divided into groups according to the suturing technique (interrupted and vertical mattress sutures), distance of the insertion points from the wound margin (margin, 1, 3, and 5 mm) and bite size (1, 3, and 5 mm). The TLC of the suture and the tearing characteristics were evaluated using a tensile tester device. RESULTS: The TLC was significantly higher for vertical mattress sutures than for interrupted sutures regardless of the distance of the insertion points from the wound margin (intergroup p < .001). This distance significantly influenced the TLC for vertical mattress sutures (p < .05) but not for interrupted sutures (p > .05). Testing the tearing characteristics revealed that no tissue tearing occurred in groups when the insertion points were more than 3 mm from the wound margin. CONCLUSION: The TLC is higher for vertical mattress sutures than for interrupted sutures, and it increases when the insertion points are farther from the wound margin.

Vascularized fascial flap for reconstruction of combined oral mucosa-mandibular defects: The multi-modal biological assessment.

OBJECTIVE: The reconstruction of composite defects in the oral and maxillofacial region using vascularized fascial flaps, such as the fibular, iliac, and temporal fascial flaps, has gained increasing attention among surgeons. However, there remains uncertainty regarding the suitability of fascial flaps as transplants, as well as their healing processes and outcomes, due to their non-mucosal nature. This study aims to comprehensively assess the biological aspects of vascularized fascial flaps at clinical, histological, and genetic levels, with the goal of providing essential biological references for their clinical application. STUDY DESIGN: This study enrolled three patients who underwent reconstruction of combined oral mucosa-mandibular defects using fibular vascularized fascial flaps between 2020 and 2023. Data regarding changes in the appearance of the fascial flaps, bulk-RNA sequencing, and histological slices of initial fascia, initial gingiva, and transformed fascia were collected and analyzed. RESULTS: Within three months, the fascial flaps exhibited rapid epithelial coverage and displayed distinct characteristics resembling mucosa. High-throughput RNA sequencing analyses and histological slices revealed that the transformed fascia exhibited tissue structures similar to mucosa and demonstrated unique advantages in promoting blood vessel formation and reducing scarring through the high-level expression of relevant genes. CONCLUSION: These findings emphasize the potential and feasibility of utilizing vascularized fascial flaps for oral mucosa reconstruction, establishing their unique advantage as transplant materials, and providing significant biological information and references for their selection and clinical application.

Histological evaluation of the surgical margins of oral soft tissue incisions using a dual-wavelength diode laser and an Er, Cr:YSGG laser; an ex vivo study.

OBJECTIVE: This study compared a dual-wavelength diode laser and an Er, Cr:YSGG laser in oral soft tissue incisions to determine the most effective and safest laser system at the histopathological level. METHODOLOGY: The (810 and 980 nm) dual-wavelength diode laser was used at 1.5 W and 2.5 W (CW) power settings, and the (2780 nm) Er, Cr:YSGG laser was used at 2.5 W and 3.5 W (PW) power settings. Both laser systems were used to incise the tissues of freshly dissected sheep tongue pieces to obtain the following histopathological criteria: epithelial tissue changes, connective tissue changes, and lateral thermal damage extent by optical microscopy. RESULTS: The epithelial and connective tissue damage scores were significantly higher in the dual-wavelength diode laser groups than in the Er, Cr:YSGG laser groups (P<0.001), and there was a significant difference between some groups. The extent of lateral thermal damage was also significantly higher in the diode laser groups than in the Er, Cr: YSGG laser groups (P<0.001), and there was a significant difference between groups. Group 2 (2.5 W) of the diode laser was the highest for all three criteria, while group 3 (2.5 W) of the Er, Cr:YSGG laser was the lowest. CONCLUSION: The Er, Cr:YSGG laser with an output power of 2.5 W is, histologically, the most effective and safest laser for oral soft tissue incision. The dual-wavelength diode laser causes more damage than the Er, Cr:YSGG laser, but it can be used with a low output power and 1 mm safety distance in excisional biopsy.

Prospective, multi-centric, international, single-arm, cohort study to assess a synthetic polyamide suture material in oral surgery to close the mucosa - MUCODA study.

OBJECTIVES: The aim was to collect different clinical parameters systematically and proactively regarding safety, effectiveness, and performance of a nylon monofilament suture under routine clinical practice for oral surgery. METHODS: The study design was prospective, bicentric, international, single-armed, and observational. A non-absorbable suture was applied to close the mucosa after different dental surgical interventions. Main objective was the incidence of combined postoperative complications until suture removal. The 95 % Confidence Interval (Agresti-Coull method) was used to prove the non-inferiority with a pre-specified upper margin of 21.9 %. Secondary variables were intraoperative suture handling, patient pain and satisfaction, wound healing, aesthetic appearance, and bacterial contamination. RESULTS: 105 patients were enrolled. Complication rate was low (1.9 %), 2 swellings occurred. Pain was present for 1.61 days ± 1.42 after various dental interventions with an average pain level of 20.98 ± 22.60 (VAS). Patients with impacted third molar extraction showed the longest pain duration (6 days) combined with the highest mean pain level of 35.33 ± 30.45 (VAS). Intraoperative suture handling was very good to excellent. Suture removal was done after an average duration of 7.56 ± 2.09 days. Patient's satisfaction was high, and an excellent wound healing was reported by the dentists. Aesthetic appearance only performed in implant patients was rated by oral surgeons with an average of 96.19 ± 3.79 points [min. 80 - max. 100] at 5 months postoperatively. Thread bacterial analysis showed that F. nucleatum was the most present species. CONCLUSIONS: Our findings indicate that the non-absorbable, nylon-based monofilament suture used is safe and quite suitable for oral mucosal closure after various dental surgical interventions such as tooth extraction, implant placement and impacted third molar extraction. CLINICAL SIGNIFICANCE: This study showed the safe use of a non-absorbable, nylon-based monofilament suture for different oral surgical interventions under daily routine clinical practice.

Prognosis of South Asian Buccal Mucosa Cancer Patients in the United States: Association of Race with Overall Survival.

BACKGROUND: Squamous Cell Carcinoma (SCC) of the buccal mucosa and gingiva accounts for approximately 10% of oral and pharyngeal cancers diagnosed in the United States each year, with a disproportionally higher incidence in individuals of South Asian descent. However, little has been documented regarding trends pertaining to overall survival. Thus, this research serves to identify predictors of survival and determine if overall survival (OS) differs for South Asians compared to other races once they develop non-metastatic buccal mucosa or gingiva squamous cell carcinoma. METHODS: A population-based, cohort study of patients registered in the National Cancer Database® (NCDB) between the years 2004-2016 was performed. Kaplan-Meyer Survival Curves were executed to examine overall survival, while univariable (UVA) and multivariable analysis (MVA) was performed to determine the effect of multiple variables on OS. RESULTS: South Asians had longer median OS at 88.7 months, compared to 58.6 months and 38.3 months for Caucasians and African Americans respectively (p<0.001). In UVA, race was highly significant, but when the cohort was selected to include only those who had undergone surgical resection, no statistically significant difference remained. On MVA, lack of surgery, older age, higher grade, higher T and N stage, use of chemotherapy, higher comorbidity scores were associated with worse OS, but race was not significant. CONCLUSION: South Asians in the US with non-metastatic buccal mucosa or gingiva SCC have better OS compared to Caucasians or African Americans, likely due to younger age at diagnosis (median 59 vs. 71 and 62 years old) and more frequent surgical resection (75% vs. 72% and 64%). In MVA, South Asians have similar OS as Caucasians.

Enhancing the vermilion in adult secondary cleft lip repair with a continuous V plasty without closure of the donor defect-a case series.

The aim of this paper was to describe a modification to an old method to enhance the vermillion in adult cleft patients. We present ten consecutive patients who requested enhancement of the upper lip vermillion. The technique involves a continuous V plasty within the non-visible mucosa to elevate the vermillion. Each V incision is of a different size to match the defect. Then the V flaps are sutured to one another but the donor defect is left open to epithelialise. Adjunctive procedures are possible at the same time. There were no major complications but one patient was over corrected and needed reduction of mucosa. The technique offers a permanent enhancement of the vermillion and is a safe alternative to other methods of lip augmentation including fillers.

Treatment of Velopharyngeal Insufficiency Using Bilateral Myomucosal Buccinator Flaps.

SUMMARY: The buccinator myomucosal flap, also referred to as a buccal myomucosal flap, is an effective technique to address velopharyngeal insufficiency after cleft palate repair. Challenges related to flap harvesting may deter plastic surgeons from incorporating this strategy as a first-line treatment. The primary objective of this study and accompanying video is to provide support regarding indications, planning, and surgical steps of the buccinator myomucosal flap technique, including important technical details for soft-palate dissection and flap harvesting.

Utilization of a Decellularized Skin Scaffold for Repair of a Cleft Palate in a Dog: A Case Report.

Cleft palates are oral deformities that mostly affect puppies. They are frequently extensive and characterized by bone and palatal mucosa malformation. This deformity is a serious condition that may result in the death of the dog, therefore surgical treatment is recommended. Tissue bioengineering has emerged as a valuable option to treat cleft palates by applying acellular biological scaffolds as grafts. This case report proposed a new approach for surgical correction of canine cleft palate through a grafting technique using a decellularized scaffold. A decellularized portion of skin was implanted to correct a large cleft palate in a 3-month-old female Pug dog. The skin fragment was obtained from a dog cadaver and a decellularization protocol was performed. Under general anesthesia, a bilateral mucoperiosteal separation of the entire length of cleft margins was performed, and the scaffold was then positioned between the tissue and the bone palate. The interaction of the grafted scaffold with the oral mucosa and palatine layers resulted in total cleft closure, without postsurgical rejection or infection, indicating the applicability of this technique in dog's cleft palate correction. This is the first reported case demonstrating this new technique, which resulted in full cleft closure and healing.

Evaluation of Long-Term Outcomes of Transverse Facial Cleft Repair.

OBJECTIVE: To evaluate the long-term outcomes of linear commissuroplasty and linear skin closure with a focus on commissural migration. DESIGN: Retrospective study. PATIENTS: Individuals who underwent transverse facial cleft repair at a single institution between 2004 and 2021. INTERVENTIONS: The disrupted orbicularis oris muscle was reoriented and sutured. A simple linear commissuroplasty technique was used, and the cheek skin was closed linearly without Z-plasty. MAIN OUTCOME MEASURES: The distances from Cupid's bow peak to the oral commissure were measured bilaterally, and the difference between the normal and cleft sides was obtained. Finally, its proportional value as a percentage of the total lip length was calculated from short- and long-term follow-up photographs. Cheek scarring and its effects on melolabial fold breakage were evaluated. RESULTS: Of the 18 patients who underwent transverse facial cleft repair, 12 were included in this study. The mean follow-up period based on medical photographs was 1773.5 days. The average proportional difference was 4.6%, demonstrating no observable commissural migration. There were no consistent trends in the direction of migration, either on the cleft or normal side. In patients with a transverse cleft crossing the melolabial fold, the folds appeared broken before and after the cleft repair surgery. CONCLUSIONS: No significant long-term commissural migration was observed after transverse facial cleft repair with simple linear commissuroplasty and linear skin closure. Deliberate positioning of the new oral commissure, proper myoplasty, and meticulous skin closure with minimal scar burden can be considered key procedures for successful transverse cleft repair.

Manejo cirúrgico da hiperplasia fibrosa: relato de caso / Surgical management of fibrous hyperplasia: case report / Tratamiento quirúrgico de la hiperplasia fibrosa: informe de um caso

Objetivo: Relatar um caso de hiperplasia fibrosa inflamatória em lábio inferior, decorrente de um transtorno de comportamento repetitivo (mordedura) e o seu devido tratamento. Relato de caso: Paciente do gênero masculino, 27 anos de idade, apresentou aumento de volume em região de lábio inferior, indolor, com evolução clínica de seis a sete meses, com relatos de práticas de mordedura em região de lábio inferior. Ao exame clínico observou-se lesão exofítica em coloração de mucosa, pediculada, medindo cerca de 8mm, no seu maior diâmetro, com aspecto circunferencial, consistente à palpação e não sangrante. O paciente foi submetido à biópsia excisional, mantendo-se uma distância mínima de 5mm do pedículo. Conclusão: No caso relato, o paciente foi submetido a uma biópsia excisional com a completa remoção da lesão e obteve um prognóstico favorável... (AU)

Objective: To report a case of inflammatory fibrous hyperplasia in the lower lip, resulting from a repetitive be havior disorder (biting) and its proper treatment. Case report: Male patient, 27 year sold, presented pain less swelling in the lowerl ipregion, with clinical evolution of sixt o seven months, with report sof biting practices in the lower lip region. Clinical examination revealed an exophytic lesion in mucosal color, peduncula ted, mea suring about 8 mm in its largest diameter, with a circumferent ial appearance, consisten ton palpation and not bleeding. The patient underwent excisional biopsy, keeping a minimum distance of 5 mm from the pedicle. Conclusion: In the case report, the patient underwent a nexcision al biopsy with the complete removal of the lesion and obtained a favorable prognosis... (AU)

Objetivo: Informar de un caso de hiperplasia fibrosa inflamatoria del labio inferior debido a um trastorno de comportamiento repetitivo (morder) y su tratamiento. Reporte de caso: Paciente masculino, de 27 años, presentó un aumento de volumen em la región del labio inferior, indoloro, com evolución clínica de seis a siete meses, con reporte de prácticas de mordedura em la región del labio inferior. El examen clínico reveló una lesión exofítica, pedunculada, de coloración mucosa, que medía aproximadamente 8mm em su mayor diámetro, de aspecto circunferencial, consistente a la palpación y no sangrante. El paciente fue sometido a una biopsia excisional, manteniendo una distancia mínima de 5mm del pedículo. Conclusión: Em el caso relatado, el paciente fue sometido a una biopsia excisional com la remoción completa de lalesión y obtuvo um pronóstico favorable... (AU)