Table of contents
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Mandibular osteoma in the posterior margin of the mandible: A literature review and case reportSebastián Lazo R Diego Ramirez V Felipe Astorga M -
Osteoma is a benign bone tumor that can develop in bones throughout the entire body but occurs mainly in the craniofacial bones. It presents as a proliferation of medullary or cortical bone, and can be classified as cen- tral, peripheral, or extra skeletal. The appearance in the jaws is infrequent, but when it occurs, there is a greater predominance of the mandible. The etiology is still unknown and the hypothesis of its development is debated, since it can occur as a reaction to trauma or infection, or originate as a true neoplasm. Osteomas of the jaws mostly present as a well-defined hyperdensity on computed tomography scans. This article presents a 49-year-old patient, where a case of a peripheral osteoma at the level of the inner face of the condyle of the left temporomandibular joint, which was related to the ipsilateral styloid process and generated complications in swallowing the patient. Two years ago, due to a radiographic finding, a radiopaque asymptomatic mass was investigated in the left mandible and was kept under observation. It progressed, increasing in volume, causing swallowing problems. In this case, we show the clinical, radiographic, scanner, Angio Tac and histopathological findings are included, in addition to the programs used to plan the resection of the osteoma.
KEY WORDS: Osteoma, bone lesions, swallowing problems.
How to cite
LAZO RS, RAMIREZ VD, ASTORGA MF. Osteoma mandibular en margen posterior de mandíbula: Una revisión de literatura y reporte de caso. Craniofac Res. 2024; 3(1):1-6
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Virtual planning previous surgery first approach: a case reportXimena Toledo Ilich Vargas Felipe Soto Paola Berdeja Rodrigo Fariña -
Orthognathic surgery consists of a procedure that can be divided in two phases; an orthodontic phase destined to correct dental position and occlusion, and a surgical phase which resolves the individual’s skeletal condition. In the conventional manner, the sequence begins with the orthodontic phase, occlusally decompensating the patient thus altering patients’ aesthetics throughout this period. Based on this conflict, the Surgery First Approach (SFA) has been proposed, beginning with the surgical phase and therefore performing the orthodontic phase in a second instance. This article presents the planning sequence carried out through virtual 3D softwares regarding a singular SFA case. Regarding obtained results and data collected from available evidence, SFA technique is a valid alternative in orthognathic surgery that relies on a series of steps to be followed and interdisciplinary communication in order to achieve satisfactory and accurate results both for patient and practitioners, with a lesser aesthetical and psychological compromise.
KEY WORDS: Orthognathic surgery, surgical orthodontics, surgery first approach, dentomaxillary anomalies, virtual planning.
How to cite
TOLEDO X, VARGAS I, SOTO F, BERDEJA P, FARIÑA R. Virtual planning previous surgery first approach: a case report. Craniofac Res. 2024; 3(1):7-12.
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Intravascular papillary endothelial hyperplasia in the lower lip: A case reportFreddy Rodríguez Dario Sosa Alexei Rojas Mariana Villarroel-Dorrego -
Intravascular papillary endothelial hyperplasia or Masson’s tu- mor is a benign, non-neoplastic lesion that can affect the torax, fingers, head, and neck. Its presence in the oral cavity is unusual; however, there are reports in the literature. A female patient in the 4th decade of life who attended the Oral and Maxillofacial Surgery Department of the Universidad Central de Ve- nezuela, with a purplish lesion on the lower lip of two months of evolution associated with masticatory trauma is presented. An excisional biopsy was performed, and a histopathological study was performed. The wall of blood vessels made up of endothelial cells showing intraluminal papillary growth was observed. The papillary structures are lined by hyperplastic endothelial cells in the vascular lumen. The definitive diagnosis was intravascular papillary endothelial hyperplasia. Due to the great resemblance to other vascular lesions, it is essential to perform a histopathological study of suspicious lesions to rule them out.
KEY WORDS: Endothelial hyperplasia, Masson’s tumor, benign oral lesions.
How to cite
RODRÍGUEZ F, SOSA D, ROJAS A, VILLARROEL-DORREGO M. Intravascular papillary endothelial hyperplasia in the lower lip: A case report. Craniofac Res. 2024; 3(1):13-17.
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Treatment of superficial benign parotid tumors a the Libertador regional hospital Bernardo O’Higgins de Rancagua, Chile: 5-year experience and analysisPedro Tapia Gustavo Matus-Miranda Pablo Molinare Ricardo Sepúlveda -
Parotid gland tumors correspond to 70 – 80 % of salivary gland tumors. Approximately 80% of them are benign and the majority appear in adults. These tumors are characterized by a great diversity in their histopathological characteristics. The main complementary tests are computed axial tomography, magnetic resonance imaging, and ultrasound- guided fine needle aspiration. The treatment of benign tumors of the parotid gland is surgical and the type of resection is the subject of debate in the literature, as it varies between wide excision techniques, such as total parotidectomy, partial superficial parotidectomy of the facial nerve, and less severe procedures. invasive procedures such as transparotid excision and extracapsular dissection. The objective of this work is to present the experience of the Maxillofacial Surgery team at the Rancagua Hospital in the surgical resolution of benign neoplasms of the parotid gland with a 5- year retrospective review. An interdisciplinary preoperative evaluation was carried out between teams of Maxillofacial Surgery, Maxillofacial Pathology and Head and Neck Surgery with imaging, serological and FNAC examinations. Of all the tumors biopsied, the benign parotid neoplasms were referred to Maxillofacial Surgery for surgical resolution. Most of these tumors were operated on with preauricular approaches with mandibular subangular extension and extracapsular dissection. The patients presented few post-operative complications, with a low rate of lesion recurrence, considering a conservative surgical treatment compared to superficial parotidectomies, which is a more aggressive and widely used therapeutic alternative. This type of minimally invasive intervention is an effective alternative with a low recurrence rate and minimal postoperative complications. It is worth highlighting the importance of the Maxillofacial Surgery specialty within medical, surgical, and oncological work teams in the resolution of this type of facial neoplasms.
KEY WORDS: Salivary gland tumors, glandular neoplasms, maxillofacial surgery.
How to cite
TAPIA P, MATUS-MIRANDA G, MOLINARE P, ZEBALLOS J, MORENO J, MATAMOROS C, SEPÚLVEDA R. Treatment of superficial benign parotid tumors at the Libertador regional hospital Bernardo O’Higgins de Rancagua, Chile: 5-year experience and analysis. Craniofac Res. 2024; 3(1):18-22.
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Modification of the intermaxillary fixation technique in patients treated with aligners a case reportXimena Toledo Felipe Soto Paola Berdeja Rodrigo Fariña -
The use of clear aligners in patients undergoing orthognathic surgery constitutes an alternative to conventional orthodontic-surgical preparation, presenting certain advantages such as comfort, aesthetics, lower cost and surgical time reduction. The objective of this article is to present, regarding a case, a clear aligner modification applied to surgical orthodontics, which allows intermaxillary fixation (IMF) without resorting to the installation of microimplants. Based on our findings, we can affirm that the modification of the technique presented is capable of providing satisfactory and stable long-term results in a surgical context, presenting numerous advantages with respect to the use of conventional fixed appliances.
KEY WORDS: Orthognathic surgery, clear aligners, intermaxillary fixation, surgical splints.
How to cite
TOLEDO X, SOTO F, BERDEJA P, FARIÑA R. Modification of the intermaxillary fixation technique in patients treated with aligners a case report. Craniofac Res. 2024; 3(1):23-26.
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Assessment changes on air space of patients pattern II submitted an orthognathic surgeryMonalisa Sena da Costa Ana Julia Coral Lucas Cavalieri Pereira -
In the orthognathic surgery, depending the technique used, an increase of the upper airway dimensions can be observed. The focus was to evaluate the relationship between airway enlargement after orthognathic surgery in patients with pattern II, based on volumetric, linear and angular measurements of the airway in relation to the occlusal plane. A retrospective observational study was carried out in 10 patients, from the Center for Oral and Maxillofacial Rehabilitation in Piracicaba, São Paulo, which had been submitted to orthognathic surgery for correction of class II dentofacial discrepancy. Cephalometric and soft tissue analysis were performed using Proplan software. Eight linear measures were considered to measure the airway, maxillary and mandibular movements in lateral norm; three three-dimensional volumetric measurements of the airway and five angular measurements to describe the rotation of the occlusal plane. The statistically significant results were saw in VC1 (15.10 [2.78] – 17.29 [3.26]), in VC4 (22.19 [3.71] – 25.84 [3.31]), in coronal plane/Pg (79.70 [7.58] – 87.71 [9.85]), in the LVV-PO angle (79.70 [5.88] – 83.75 [5.86]) representing a large and significant increase after surgery. There was also a strong correlation between the variation in the VC3 measurement and the measurements in the lateral norm, between the variation of the nasopharynx and oropharynx with vertical changes in Pg (p < 0.05). According to the results obtained, it can be concluded that the mandibular advancement and chin advancement with counterclockwise rotation had a positive impact on the increase of the airway in the hypopharynx region, being especially favorable in cases of retrognathism and treatment of the syndrome of obstructive sleep apnea.
KEY WORDS: Orthognatic surgery, upper airway, virtual planning.
How to cite
DA COSTA MS, CORAL AJ, CAVALIERI PEREIRA L. Assessment changes on air space of patients pattern ii submitted an orthognathic surgery. Craniofac Res. 2024; 3(1):27-37.
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Lefort I and zygomatic implant for severe atrophic maxilla: a literature review and technique descriptionOmar Campos Fernanda Pintor Ariel Zivov Matías Dallaserra Camila Oyarzún -
The treatment of atrophic maxilla has multiple options were zygomatic implants with simultaneous Lefort I osteotomy correspond to an effective non- grafting and prosthetically viable alternative. The objective of this article is to present a literature review of Lefort with zygomatic implant placement for the treatment of severe atrophic maxilla and the description of this technique. A systematic search was carried out for identify the existing relevant literature. A descriptive analysis is made for each identified study that described or compare the use of zygomatic implants and Lefort osteotomy. The general technique is described. All databases were consulted with the systematic search strategy and all the included studies references were revised for more articles that meet the inclusion criteria. Four articles have been published that described the Lefort I osteotomy and simultaneous zygomatic implant placement, all of them are case reports. No comparative studies were identified. Regardless that the main evidence identified is based only in series of cases published by different authors and that no comparative evidence exists, this technique could be a viable and effective option for the treatment of this patients without the need of a complementary bone graft and other associated morbidities.
KEY WORDS: Zygomatic implants, lefort I, atrophic maxilla.
How to cite
CAMPOS O, PINTOR F, ZIVOV A, DALLASERA M, OYARZÚN C. Lefort I and zygomatic implant for severe atrophic maxilla: A literature review and technique description. Craniofac Res. 2024; 3(1):38-43.
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Arthrocentesis of the temporomandibular joint with triangulation technique: technical dataMónica de la Fuente Escalona Rodrigo Medina Sánchez Rodrigo Bravo Ahumada -
Arthrocentesis is a minimally invasive treatment indicated for internal TMJ (temporomandibular joint) disorders. However, it requires the expertise of a specialist and presents a significant technical difficulty due to the three-dimensional small size of the joint. In this technical note we describe the insertion of the second arthrocentesis needle based on the triangulation technique described by McCain for arthroscopy.
KEY WORDS: Temporomandibular joint, arthrocentesis, techniques, temporomandibular joint disorders.
How to cite
DE LA FUENTE ESCALONA M, MEDINA SANCHEZ R, BRAVO AHUMADA R. Arthrocentesis of the temporomandibular joint with triangulation technique: technical data. Craniofac Res. 2024; 3(1):44-47.
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Conservative treatment of recurrent odontogenic keratocyst using enucleation and topical 5-fluorouracil: A case reportAlan Polanco Carlos Arroyo José Hidalgo Alejandro Rivera -
Odontogenic keratocyst is a generally asymptomatic intraosseous lesion, commonly located in the posterior mandibular region. It is the third most prevalent cyst in the oral cavity and the most studied currently due to its aggressive behavior and high recurrence rate. To reduce the rate of lesion recurrence, the use of topical 5-fluorouracil has been proposed as an alternative adjuvant treatment to enucleation due to the success rate demonstrated in basal cell carcinomas, an entity whose molecular pathogenesis is similar to that of odontogenic keratocyst. The case of a 54-year-old patient with an intraosseous lesion located in the right mandibular ramus is presented, which was diagnosed as a recurrent odontogenic keratocyst and whose treatment was through surgical enucleation and application of topical 5-fluorouracil 5% to through packed gauze for 24 hours. There has been no recurrence of the lesion after 14 months of follow-up.
KEY WORDS: Treatment, odontogenic Keratocyst, topical 5-fluorouracil.
How to cite
POLANCO A, ARROYO C, HIDALGO J, RIVERA A. Conservative treatment of recurrent odontogenic keratocyst using enucleation and topical 5-fluorouracil: A case report. Craniofac Res. 2024; 3(1):48-53.
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Relationship between maxillomandibular rotation and airway volume in subjects with maxillo-mandibular prognathismVíctor Ravelo Ailyn Navarrete Marcelo Parra Sergio Olate -
The vertical growth of the mandible is related to the degree of inclination of the mandibular plane and the contour of the mandibular angle. These characteristics are related to the upper airway and vary depending on the skeletal class and the mandibular vertical pattern. The aim of this study is to describe and compare the inclination and angulation of the maxillomandibular plane in class III subjects and to establish the relationship with the area and volume of the airway. A cross-sectional study was performed to evaluate the area and volume of the airway and itsrelationship with the maxillomandibular plane in class III skeletal subjects who are candidates for orthognathic surgery, using cone beam computed tomography. A total of 86 CIII subjects with mandibular prognathism who were candidates for orthognathic surgery were analyzed. They ranged in age from 18 to 59 years (29 ± 10.1). 46 subjects were male (55.55%) and 40 were female (44.45%). 57 subjects presented an open angulation and 29 subjects presented a closed angulation. Subjects with an open angulation presented a hyperdivergent pattern. Whereas subjects with a closed angulation presented a greater minimum area (p<0.01), maximum area (p<0.07) and to- tal volume (p<0.03) than subjects with an open angulation. We can conclude that in skeletal CIII subjects with mandibular prognathism who present open angulation, it is necessary to evaluate the mandibular inclination together with the minimum area and total volume of the upper airway.
KEY WORDS: Skeletal class III, mandibular angle, upper airway space.
How to cite
RAVELO V, NAVARRETE A, PARRA M, OLATE S. Relationship between maxillomandibular rotation and airway volume in subjects with mandibular prognathism. Craniofac Res. 2024; 3(1):54-61.