Characteristics,advantages and application of osteogenic differentiation of jaw bone marrow mesenchymal stem cells / 中国组织工程研究

BACKGROUND:The repair of maxillofacial bone tissue defects is a hot and difficult point in current research and the selection of seed cells is the key.Jaw bone marrow mesenchymal stem cells are adult mesenchymal stem cells that exist in the jaw bone.They have advantages in the application of maxillofacial tissue regeneration. OBJECTIVE:To summarize the biological characteristics,osteogenic differentiation advantages of jaw bone marrow mesenchymal stem cells,and the effects of drugs,in vivo environment,and microRNAs on the osteogenic differentiation of jaw bone marrow mesenchymal stem cells. METHODS:Computers were used to perform literature retrieval in PubMed and CNKI.Chinese and English search terms were"oral,bone tissue engineering,stem cells".405 articles were retrieved and downloaded.The articles were screened according to the inclusion and exclusion criteria and 70 articles were finally included for literature review. RESULTS AND CONCLUSION:Jaw bone marrow mesenchymal stem cells were excellent seed cells for oral bone tissue engineering,and had good proliferation and osteogenic differentiation potential.Drugs,in vivo environment and microRNAs could regulate the osteogenic differentiation of jaw bone marrow mesenchymal stem cells.However,the research on jaw bone marrow mesenchymal stem cells was still in the initial stage,so more research with strong demonstration is needed to confirm that jaw bone marrow mesenchymal stem cells have more advantages in the application of maxillofacial bone tissue regeneration.

Application of pectoralis major flap in complex defects after maxillofacial " frozen neck" surgery / 中国医师杂志

Objective:To summarize the application of pectoralis major flap in complex defects after maxillofacial " frozen neck" surgery.Methods:The clinical data of 7 patients with maxillofacial " frozen neck" admitted to the Department of Stomatology of the Xuzhou Central Hospital from October 2020 to October 2022 were retrospectively analyzed. The pectoralis major flap was used to repair the complex defects after surgery and the treatment effect was observed.Results:All 7 patients had survived flap transplantation with no serious complications. After 3 to 24 months of follow-up, the patients were basically satisfied with the treatment effect.Conclusions:The pectoralis major flap has reliable blood supply, abundant tissue, and can be applied flexibly with a high survival rate and significant repair effect. It is a good choice for repairing complex defects after " frozen neck" surgery, and it has clinical application value.

Carbon dioxide laser treatment of facial papilloma in children: case report and literature review / 口腔疾病防治

Objective@#To investigate the feasibility of using a carbon dioxide(CO2) laser in the treatment of facial papilloma in children and to evaluate its curative effect and prognosis.@*Methods @#A case of pediatric facial papilloma treated with a CO2 laser was reported, and the effects of this disease and CO2 laser treatment were reviewed and analyzed in combination with the literature. @* Results@#Under general anesthesia, the lesion tissue of the left lip was excised for pathological biopsy, and the diagnosis was maxillofacial papilloma. The lesions were surgically ablated in stages with a CO2 laser, and erythromycin ointment was applied to the surgical incision after surgery. A total of three rounds of CO2 laser treatment were performed for 3 treatment courses. The child had no complications during or after the operation, the facial appearance was significantly improved, and there was no sign of recurrence during the 6-month follow-up. A literature review showed that CO2 lasers have been widely used in the excision of various surface lesions. In clinical practice, continuous CO2 laser with power of 10-50 W and wavelength of 10.6 μm is used to treat superficial tissue lesions, which can achieve accurate vaporization resection of diseased tissue, less bleeding and a good prognosis.@* Conclusion@#CO2 laser was accurate and minimally invasive for the removal of facial papilloma in children.

Short-term efficacy of superficial X-ray treatment for infantile maxillofacial hemangioma / 华西口腔医学杂志

OBJECTIVES@#This study aimed to explore the short-term clinical efficacy and factors influencing low-dose superficial X-ray for treating infantile maxillofacial hemangioma.@*METHODS@#Retrospective analysis was conducted on 161 cases of infants with maxillofacial hemangioma treated with superficial X-ray in the Laser Center of Dermatology Department of Sichuan Provincial People's Hospital from January 2015 to December 2017. Clinical efficacy was analyzed by comparing the photos before and after treatment. Patients were further divided into groups according to different genders, age at the start of treatment, preterm birth or low birth weight, hemangioma site, longest diameter of hemangioma, and type of hemangioma to analyze whether differences existed in clinical efficacy and therapeutic dose between different groups.@*RESULTS@#Twelve months after the end of treatment, the overall cure rate was 93.8%, and the significant efficiency was 97.5%. The clinical efficacy was related to the age of children at the beginning of treatment and the type of hemangioma (@*CONCLUSIONS@#Low-dose superficial X-ray is safe and effective for the treatment of infantile maxillofacial hemangioma. Age and type of hemangioma at the time of treatment are the factors influencing therapeutic dose and clinical efficacy.

Research progress on the treatment of oral and maxillofacial hemangioma / 口腔疾病防治

@#Hemangioma is the most common vascular benign tumor in infants and young children, 60% of which occur in the oral maxillo-facial region. One characteristic of oral and maxillofacial hemangioma is spontaneous regression, which generally does not require treatment; however, a few hemangiomas can produce complications including ulceration, functional disorders and disfigurement, which require active treatments. Currently, the treatment of oral and maxillofacial hemangioma include drug treatment, laser treatment and surgical treatment. The drugs used to treat hemangioma mainly include beta blockers, glucocorticoids, alpha-interferon, imiquimod and antitumor drugs. Drug therapy is suitable for multiple, rapidly proliferating hemangiomas and hemangiomas that affect vital organ function or endanger life. Laser therapy can be applied to the early treatment of rapidly growing hemangiomas at exposed sites. Surgical treatment is suitable for proliferative hemangioma with serious complications, the reconstruction of any external deformity and the repair of a scar after an ulcer. Combined therapy and the development of new technologies provide new directions for the treatment of hemangioma but the efficacy remains to be proven by large sample prospective studies. Clinicians should appropriately evaluate the patients with hemangioma and develop individualized treatment programs for patients with treatment indications. This article reviews the efficacy, mechanism, clinical application and adverse reactions of different treatment methods and provides references for clinical treatment.

Trend of incidence of surgical site infection following oral and maxillofacial surgery during 11 years / 中国感染控制杂志

Objective To understand the changing trend of incidence of surgical site infection (SSI) following oral and maxillofacial surgery, and explore the influence of American Society of Anesthesiologists (ASA) score, type of incision, duration of operation and surgical risk index.Methods Data of patients who were hospitalized and underwent oral and maxillofacial surgery in a tertiary dental hospital from 2007 to 2017 were retrospectively analyzed. Trend Chi-square test was used to analyze the changing trend of incidence of SSI, binary logistic regression was used to analyze the risk of SSI.Results From 2007 to 2017, incidence of SSI in patients with oral and maxillofacial surgery was 0.33％-0.93％, with an average of 0.71％; patients with high indexes of ASA score, type of incision, duration of operation and surgical risk had higher incidence and risk of SSI; incidence of SSI was the lowest in 2009. In patients with ASA score of P1, surgical risk index of grade 1, incidence of SSI declined from 0.72％ and 2.79％ in 2011 to 0.42％ and 1.54％ in 2017 respectively, with a decrease of more than 41％.Conclusion Incidence of SSI following oral and maxillofacial surgery decreased and finally remained at a low level during 11 years, with the increase of ASA score, risk indexes score of surgical incision type, duration of surgery and surgical risk, incidence and risk of SSI increased gradually, medical environment may be one of the factors that affected SSI.

Risk factors of postoperative infection in patients with oral and maxillofacial malignant tumor / 中国感染与化疗杂志

Objective To analyze the factors associated with postoperative surgical site infection(SSI)in patients with oral and maxillofacial malignancy. Methods A retrospective study was performed on 240 patients after surgical treatment of oral and maxillofacial malignancies. The incidence of postoperative SSI was calculated in terms of the location of tumor. Preoperative serum albumin level, preoperative periodontal calculus, surgical approach, intraoperative antibiotic use, intraoperative blood loss, length of surgery, duration of indwelling catheter, length of hospital stay, postoperative drainage tubes, and length of ICU stay were considered as potential risk factors for SSI in patients with oral and maxillofacial malignancy. These factors were compared between the patients with SSI and those without SSI by univariate analysis. The significant factors identified by univariate analysis(P<0.05)were included in multivariate logistic regression analysis to identify the independent risk factors. Results The highest incidence of SSI was found in patients with tongue cancer, followed by patients with carcinoma of buccal mucosa, carcinoma of lip, and carcinoma of gingiva. No infection was found in the patients with carcinoma of palate(P<0.05). Univariate analysis identifid that preoperative serum albumin level ≤ 35 g/L, preoperative periodontal calculus level 3, surgical approach III(extended resection + cervical lymph node dissection + flap repair), intraoperative use of antibiotics, duration ofindwelling catheter ≤ 24 h, length of hospital stay>18 days, postoperative drainage tube were significant factors of SSI(P<0.05). There were no statistically significant differences between the non-infected group and the infected group in intraoperative blood loss, duration of surgery and ICU stay(P>0.05). Multivariate logistic regression analysis found that preoperative periodontal calculus level 3(OR=7.149, P=0.014), preoperative serum albumin level ≤ 35 g/L(OR = 0.059, P=0.034), surgical approach III(OR=4.135, P=0.024), hospital stay>18 days(OR=24.845, P=0.009)were the independent risk factors for postoperative SSI in patients with oral and maxillofacial malignancy. Conclusions Preoperative periodontal calculus level 3, preoperative serum albumin level ≤ 35 g/L, surgical approach III, and hospital stay>18 days are independent risk factors for SSI in patients with oral and maxillofacial malignancy. Such SSI is relatively more prevalent in patients with tongue cancer. Corresponding measures should be taken for prevention of postoperative SSI in such patients.

Comparison of accuracy between panoramic radiography, cone-beam computed tomography, and ultrasonography in detection of foreign bodies in the maxillofacial region: an in vitro study

OBJECTIVES: Foreign bodies (FBs) account for 3.8% of all pathologies of the head and neck region, and approximately one third of them are missed on initial examination. Thus, FBs represent diagnostic challenges to maxillofacial surgeons, rendering it necessary to employ an appropriate imaging modality in suspected cases. MATERIALS AND METHODS: In this cross-sectional study, five different materials, including wood, metal, glass, tooth and stone, were prepared in three sizes (0.5, 1, and 2 mm) and placed in three locations (soft tissue, air-filled space and bone surface) within a sheep's head (one day after death) and scanned by panoramic radiography, cone-beam computed tomography (CBCT), and ultrasonography (US) devices. The images were reviewed, and accuracy of the detection modalities was recorded. The data were analyzed statistically using the Kruskal-Wallis, Mann-Whitney U-test, Friedman, Wilcoxon signed-rank and kappa tests (P < 0.05). RESULTS: CBCT was more accurate in detection of FBs than panoramic radiography and US (P < 0.001). Metal was the most visible FB in all of modalities. US was the most accurate technique for detecting wooden materials, and CBCT was the best modality for detecting all other materials, regardless of size or location (P < 0.05). The detection accuracy of US was greater in soft tissue, while both CBCT and panoramic radiography had minimal accuracy in detection of FBs in soft tissue. CONCLUSION: CBCT was the most accurate detection modality for all the sizes, locations and compositions of FBs, except for the wooden materials. Therefore, we recommend CBCT as the gold standard of imaging for detecting FBs in the maxillofacial region.

Epstein–Barr virus infection in B-cell Non-Hodgkin’s Lymphomas of the Oral and Maxillofacial Region: Is there any evidence?

Introduction: Epstein–Barr virus (EBV) might be an aetiological agent involved in the pathogenesis of certain Non-Hodgkin’s Lymphomas (NHLs). EBV infection has been diagnosed by serologic testing within the tumour biopsies of patients with NHL. However, the association between EBV and NHL is inconsistent with a preference for certain anatomic sites, histologic subtypes and immunosuppressed patients. The objective of this study was to characterise the B-cell NHLs of the oral cavity and maxillofacial region using histological and immunophenotypical techniques and to determine its association with EBV infection. Materials and Methods: This was a descriptive cross-sectional study that included 14 cases of B-cell NHLs of the oral cavity and maxillofacial region. The haematopoietic and lymphoid tissue tumours classification of WHO was used to categorize the cases. In-situ hybridisation for EBV–encoded RNA was performed to confirm the EBV infection. Results: The average age of the patients included in the study was found to be 48.8 ± 23 years with a higher female to male ratio (1.3:1). Our study suggested that diffuse large B-cell lymphomas (DLBCLs) and Burkitt’s lymphomas (BLs) constitute the predominant subtypes of lymphomas affecting the oral cavity and maxillofacial regions. Conclusion: The findings from our study support the view that at least a relatively smaller proportion of B-cell NHLs that occur in the oral cavity and maxillofacial region do not have a pathogenic association with EBV.

Optimized reconstruction of oral and maxillofacial defects with common soft-tissue free flaps / 口腔疾病防治

@#Severe tissue defects in the oral and maxillofacial region are commonly caused by tumor resection and trauma and can impair physiological function and aesthetics in patients. Applying a soft-tissue free flap transfer may avoid exposing important blood vessels and nerves and restore basic anatomical structures and facial features. However, the outcomes of soft-tissue free flap transfer have tended to be unsatisfactory because of the exquisite anatomical structure and complicated functions of the oral and maxillofacial region. Therefore, it is clinically important to choose a proper reconstructive method based on specific tissue defects and to optimize the processes involved in the designing and harvesting of soft-tissue free flaps. In this review, we summarize the application of soft-tissue free flaps in oral and maxillofacial defects and strategies for optimizing the quality of tissue reconstruction.

Construction of the 3D digital models of maxillofacial region based on CT and MRI images fusion / 口腔疾病防治

Objective @#To explore an efficient method for the establishment of three-dimensional (3-D) digital models of maxillofacial region including muscle tissue based on CT and MRI images fusion on a personal computer, integration of CT and MRI data, and provide accurate 3D model for biomechanical analysis. @*Methods @#A male volunteer was scanned on maxillofacial region by spiral CT and MRI. Two kinds of data obtained were imported into Mimics 15. In the three sections, namely the transverse, sagittal, coronal sections, two kinds of data were adjusted to the same anatomical layers. The most obvious anatomical points on each layer were selected as registration points. Then, the multi-points registration was implemented for data fusion. Then the bone and facial skin were segmented and 3D reconstructed using CT data, the main facial muscles were segmented and 3D reconstructed using MRI data. @*Results@#The 3D model including 3 pairs of masticatory muscles, 12 pairs of facial expression muscles, facial skin and jaw tissues were established. @*Conclusion @# The efficient registration and fusion of CT and MRI datas were accomplished. Moreover, this method can be used for further segmentation and reconstruction of other important structures in craniofacial area, such skin, blood vessel, fat, lymph node and the brain tissues.

Application of mind mapping in the teaching of oral and maxillofacial development / 中华口腔医学杂志

Oral and maxillofacial development is the course that the oral students first learn, and their mastery directly influences the study of other courses that follow. The application of mind mapping in the teaching of the development of oral maxillofacial region can make the temporal and spatial features of oral and maxillofacial development in the form of visual presentation, help students build development mode of thinking, stimulate students' interest in learning, improve the quality of teaching of oral histopathology, and promote the new teaching concept in oral pathology teaching.

Application of platysma myocutaneous flap with apron incision in the restoration of oral and maxillofacial defects / 实用口腔医学杂志

Objective:To introduce a new style of platysma myocutaneous flap and to evaluate its application value in the restoration of oral-maxiofacial defects.Methods:Platysma myocutaneous flap with apron incision was used for the restoration of oral-maxiofacial defects after oral lesion ablation in 15 cases from January,2014 to September,2015.The platysma muocutaneous flap was harvested with a U shaped apron incision.The skin above the flap pedicle was preserved.The platysma pedicle was widened to ensure the flap survival.All the patients were followed up form 4 to 33 months.Results:Of the 15 platysma myocutaneous flaps,12 survived completely and 3 had partial flap necrosis.The total survival rate of the flaps at the recipient site of buccal mucosa,tongue and alveolar was 8/9,1/3 and 3/3 respectively.Additionally,there were 2 cases of disturbed wound healing in the neck.Except for 1 case of carcinoma of gingiva which had apparent cervical scar and 1 case of tongue carcinoma which had limited tongue mobility,the other cases showed a satisfactory recovery of oral-maxillofacial contour and fucnction.Conclusion:Compared with the traditional platysma myocutaneous flap,the platysma myocutaneous flap with apron incision can provide a larger skin paddle,and is suitable for the restoration of small and medium sized buccal mucosa and alveloar defects,but not for tongue defect.

Therapeutic effect of external carotid artery catheterization and drug infusion therapy for severe infant hemangiomas in oral and maxillofacial regions / 中华实用儿科临床杂志

Objective To explore the therapeutic effect and the efficacy of external carotid artery catheterization and drug infusion therapy for severe infant hemangiomas in oral and maxillofacial regions.Methods The clinical and follow-up data of 126 cases with severe infant oral and maxillofacial hemangiomas were retrospectively analyzed in Henan Provincial People's Hospital between June 2004 and December 2009.The patients included 45 male and 81 female cases,and the average visiting age of the patients was 3.9 months (ranged 10 days to 1 year and 4 months).Among 126 patients,24 cases occurred with Kasabach-Merritte syndrome (KMS).The patients were treated with ligation of external carotid artery,insertion of a tube inside the lesion and injection of 400 g/L Carbonyldiamide after operation.Methylprednisolone was added in infusion if the patients were combined with KMS.Results The mean follow-up period was 6.1 years (ranged 4.3 to 10.2 years).All of 126 cases were cured through the management including external carotid artery catheterization and drug infusion therapy in 94 cases,and the combination treatment of the infusion and local Carbonyldiamide injection in 32 cases.The size of hemangiomas gradually shrank and disappeared after the therapy.The hemangiomas in 105 cases disappeared completely in 6-12 months,and 21 cases disappeared in 1-2 years.Twenty-four patients were complicated with KMS.The thrombocyte count and blood coagulation function also returned to normal after the therapy.Among the 24 cases,the thrombocyte count in 13 cases was back to normal within 3-7 days,and 7 cases within 8-14 days.In the remaining 4 cases,it normalized within 15-30 days.The weight,height,immunity of the patients were in keeping with the healthy counterparts after long term follow-up.And no serious adverse effect was observed.Conclusions For severe infant hemangiomas in oral and maxillofacial regions,the external carotid artery catheterization and drug infusion therapy can obviously shorten the treatment time,and reduce the drug side effects.It is a better and more reliable treatment method.

CT imaging and pathological features of maxillofacial malignant myoepithelioma / 实用放射学杂志

Objective To evaluate CT imaging and pathological features of maxillofacial malignant myoepithelioma (MME). Methods A total of eight patients with pathologically confirmed MME of the maxillofacial region were underwent non-enhanced and contrast-enhanced CT scans.CT features of the lesions were assessed as follows:location,number,shape,size,enhancement pattern and CT number on non-enhanced and contrast-enhanced scan.CT features were compared with the pathological results.Results All the lesions were unilateral,in which mixed type with clear cells and spindle cells in 5 cases,mixed type with epithelioid cells and plas-ma cells in 2 cases,and clear cell type in one case.8 cases were manifested as lobulated mass.On non-enhanced scan,the density of all the lesions were hetergeneous with cystic area,1 case with calcification and 2 cases with bone destruction.On the contrast-en-hanced CT,all the lesions were showed hetergeneously moderate or obvious enhancement,and cystic,line and crack areas without the enhancement were observed.Minor vessel and spiculate protuberance of marginal zone on the arterial phase were observed in most le-sions.Conclusion MME has different pathological subtypes and characteristic CT features.CT is an effective method to diagnose MME.

Stem Cell Therapy in Dentistry: An Overview.

Cells with a unique capacity for self-renewal and potency are called stem cells. With appropriate biochemical signals stem, cells can be transformed into desirable cells. Regeneration of oral and maxillofacial structures is earned out by using stem cell therapy, and this has gained momentum in recent days. Future tissues like tissue engineered bone grafts, engineered joints and cranial sutures can be developed with stem cell therapy. We have described the properties, types and advantages of dental stem cells. Emphasis is been given to the possibilities of stem cell therapy in the oral and maxillofacial region including regeneration of tooth and craniofacial defects.

Application of vascularized anterolateral thigh perforator flap harvested with free-style approach in oral and maxillofacial reconstruction / 中华显微外科杂志

Objective To assess the harvest method and application value of free-style anterolateral thigh perforator flap (ALTPF) in oral-maxillofacial reconstruction.Methods Fifty-three patients who suffered from oral and maxillofacial tumor underwent simultaneous reconstruction using free-style ALTPFs after radical resection from August,2013 to May,2014.Perforators of the ALTPF region were marked through hand-held Doppler probe preoperatively.Flaps were designed centered on perforators according to the defect size of the accepting site.Incisions were first made at the inner border of the designed flap.Perforators were exposed above the fascia lata femoris and then dissected retrogradely through the vastus lateralis muscle to harvest a vascular pedicle with desired caliber and length.Flap thinning was applied under microscope in some cases to compromise the need of the accepting site.Results All 53 flaps survived after transplantation while skin exfoliation occurred in 5 cases due to flap thinning.Four cases sustained partial necrosis and was cured by trimming and dressing changes.Five to 14 months' post-operative followup showed satisfactory accepting-site morphology with good speech function and swallowing recovery.All donor sites were closed primarily without skin-grafting,leaving no donor-site complications including incision disruption,scar hyperplasia and muscle strength degeneration of the lower limb.Conclusion Multiple perforators have been accu rately located preoperatively in free-style harvest approach of ALTPFs,thus optimal effects can be reached with decreased donor-site morbidity and improved aesthetic outcome to the uttermost,which accords with the refined,personalized and minimal invasive development concept of modem reconstructive surgery.

Oral and maxillofacial appearance of AIDS patients and the detection methods of HIV infection / 国际检验医学杂志

Objective To observe and analyze the oral and maxillofacial appearance of patients with acquired immune deficiency syndrome(AIDS)and to explore the effective detection methods of hunman immunodeficiency virus(HIV)infection,aimed at early diagnosis of HIV infection and AIDS,providing reference for treatment and prevention.Methods 21 6 cases of suspected HIV infec-tion and AIDS therapy-naive patients in the department of infection disease in this hospital,from January 2012 to March 2014,were selected.Oral and maxillofacial appearances,detection methods and its results were retrospectively analysed.Results The main clinical manifestations of patients with HIV infection and AIDS were oral candidiasis,oral hairy leukoplakia,herpes simplex virus infection,Kaposi′s sarcoma,periodontal disease,ulcer disease and other abnormal attribute.All of the 21 6 samples were positive in the preliminary screening,214 cases were confirmed by western blotting(WB),and the sensitivity,specificity and false positive rate were 99.07%,100.00% and 0.926%,repectively.Conclusion Focusing on clinical symptoms and signs in oral and maxillofacial re-gion of patients with HIV infection and AIDS could provide significant references for clinical diagnosis,and combing detection meth-ods of enzyme linked immunosorbent assay(ELISA)and WB could make a definite diagnosis,which might be benefit to make effec-tive prevention and treatment measures and in order to control the infection and improve the prognosis.

Transcatheter arterial embolization using hardening agent combined with oral propranolol for the treatment of giant hemangioma at maxillofacial region in infants / 介入放射学杂志

Objective To discuss the therapeutic effect of transcatheter arterial embolization using hardening agent combined with oral propranolol in treating giant hemangioma at maxillofacial region in infants. Methods During the period from October 2013 to December 2014 at Imaging Center of Anhui Provincial Children's Hospital, transcatheter arterial embolization using hardening agent combined with oral propranolol was employed in a total of 27 infants with giant hemangioma at maxillofacial region. The age of the infants ranged from 2 months to 22 months (mean 5.9 months) and the body weight was 4.5-10 kg with a mean of 6.32 kg. Angiography via femoral artery was performed, which was followed by super-selective catheterization of hemangioma-feeding artery, and then pingyangmycin lipiodol emulsion was injected into the hemangiomas with subsequent injection of PVA particles to obstruct the hemangioma-feeding artery. After the embolization treatment, the patient received oral propranolol for 3-6 months. Results All the infant patients were followed up for 3-6 months. Clinical examination and ultrasonography indicated that the hemangioma was cured in 20 infants (75%) and the therapeutic result was effective in 7 infants (25%). Skin necrosis at hemangiomas site was observed in 2 infants (7.5%), which was cured after symptomatic treatment. No serious complications such as pulmonary embolism, cerebral embolism occurred, and no recurrence was observed. Conclusion For the treatment of giant hemangioma at maxillofacial region in infants, transcatheter arterial embolization using hardening agent combined with oral propranolol is minimally invasive, quickly effective and highly safe;and this treatment leaves no scar formation in most cases. Therefore, this technique is worthy of clinical application.

Reconstrucción de proceso alveolar maxilar con injerto autólogo de cresta iliaca / Reconstruction of maxillary alveolar process with iliac crest autologous graft

El caso clínico que se muestra ejemplifica la conjunción de múltiples técnicas quirúrgicas con el objetivo de rehabilitar protésicamente a un paciente desdentado, para el tratamiento del maxilar superior atrófico con injerto autólogo de cresta iliaca anterior tipo onlay. Se trata de paciente del sexo femenino de 60 años de edad, la cual presenta un proceso alveolar atrófico tipo IV de Cawood y Howell, por lo que se realiza la conservación y reconstrucción de proceso alveolar con injerto autólogo de cresta iliaca.

The clinical case presented in this article illustrates the combination of multiple surgical techniques geared to the prosthetic rehabilitation of an edentulous patient for the treatment of an atrophic upper jaw with an onlay type iliac crest autologous graft. Treated patient was a 60 year old female presenting a type IV Cawood and Howell atrophic alveolar process. Therefore, treatment conducted was reconstruction of the alveolar process with an iliac crest autologous graft.