Alireza Parhiz - Academia.edu (original) (raw)

Papers by Alireza Parhiz

$Research paper thumbnail of Evaluation of stress and strain on surgical screws and plates in mandibular trunk fractures at different positions of plates and screws: Finite Element Analysis$

Journal of craniomaxillofacial research, Apr 7, 2024

Journal of Craniomaxillofacial Research

Sagittal split ramus osteotomy is one of the most efficient steotomy techniques for orthognathic ... more Sagittal split ramus osteotomy is one of the most efficient steotomy techniques for orthognathic surgery. This technical note presents a new technique of mandibular osteotomy to prevent bony interferences with simultaneous maxillary impctions. As well as increase in bone contact for great mandibular advancements which results in better bone healing. furthermore, Fixation of bony segments in this area is far from third molar alveolar socket if extraction is done and is not involved in the process.

DOAJ (DOAJ: Directory of Open Access Journals), Jul 1, 2019

Journal of Oral and Maxillofacial Surgery, May 1, 2011

Journal of dental health, oral disorders & therapy, Sep 25, 2017

International Journal of Oral and Maxillofacial Surgery, Apr 1, 2012

Journal of craniomaxillofacial research, Jun 20, 2020

Today bilateral sagittal split osteotomy technique is one of the main surgical methods used in ma... more Today bilateral sagittal split osteotomy technique is one of the main surgical methods used in mandibular deformities surgical correction. Since, the osteotomy design has an important role in decreasing BSSO complications, we developed a technique which restrict the osteotomy points to posterior medial ramus cut and anterior vertical cut in widely used hunsuck modification for decreasing the complications.

Journal of craniomaxillofacial research, Oct 12, 2015

2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

$Research paper thumbnail of Retromandibular anteroparotid approach for mandibular condylar fracture ARTICLE INFO ABSTRACT$

patients with the age range of 17 to 41 years with a diagnosis of subcondylar fracture at Sina Ge... more patients with the age range of 17 to 41 years with a diagnosis of subcondylar fracture at Sina General Hospital , Iran, underwent open treatment of subcondylar fractures by retromandibular anteroparotid transmasseteric approach. Results: Occlusion status was evaluated by observing the dental contact by articulating paper and also as subjective by the patient, all patients had proper occlusion. 4 cases (40%) at the end of the first week after surgery complained of joint pain during the touch, at last follow-up, none of the patients had tenderness. All patients were normal at 6 months after surgical treatment in terms of mouth opening. Facial nerve was maintained in all patients except only one case (10%) that weakness was observed in buccal branch of the facial nerve after surgery which was resolved completely after the 6-month follow-up and had returned to normal status. Also, there were no signs of complications of salivary glands, such as salivary fistula, sialocele or postoperati...

$Research paper thumbnail of Retromandibular anteroparotid approach for mandibular condylar fracture$

The aim of this study was to present and review retromandibular anteroparotid approach and to eva... more The aim of this study was to present and review retromandibular anteroparotid approach and to evaluate its efficacy and safety in reduction and fixation of subcondylar fractures. Materials and Methods : In the period between January 2013 to February 2014, 10 patients with the age range of 17 to 41 years with a diagnosis of subcondylar fracture at Sina General Hospital, Iran, underwent open treatment of subcondylar fractures by retromandibular anteroparotid transmasseteric approach. Results : Occlusion status was evaluated by observing the dental contact by articulating paper and also as subjective by the patient, all patients had proper occlusion. 4 cases (40%) at the end of the first week after surgery complained of joint pain during the touch, at last follow-up, none of the patients had tenderness. All patients were normal at 6 months after surgical treatment in terms of mouth opening. Facial nerve was maintained in all patients except only one case (10%) that weakness was observe...

Introduction : The aim of this study is to define the trend of the orthodontists and the surgeons... more Introduction : The aim of this study is to define the trend of the orthodontists and the surgeons in the borderline Class III patients and assess their satisfaction after the surgery. Materials and Methods : The study population consisted of 31 patients (16 female and 15 male) with the average age of 21 years, whose final occlusion 2 months after the surgery was perfect. The amount of reverse overjet was less than 5 mm in all patients. Surgeons and orthodontists made their treatment plan separately and if there were any differences, the surgeon and orthodontist would discuss it and the patient would be treated by the best treatment plan. The patients’ satisfaction at least 5 months after orthognathic surgery was assessed quantitatively by means of a visual analogue scale (VAS) of 10 cm. Result : Among 31 patients entered in this study, orthodontists suggested two-jaw surgery for 61% of patients while surgeons suggested two-jaw surgery for 45% of patients. In 35% of patients, the ort...

Klinefelter syndrome includes a group of chromosomal disorders with at least one additional X ... more Klinefelter syndrome includes a group of chromosomal disorders with at least one additional X chromosome in male karyotype (46,XY). Up to now, different dental manifestations such as taurodontism, congenital absence of permanent teeth, shovel incisors, occlusal anomalies and increased permanent tooth size have been reported. A case of Klinefelter syndrome with very rare dental features is presented.

Journal of Dental Medicine, 2019

رتكد زيهرپ اضريلع ١ رتكد يودف غورف ٢  رتكد ينانمس يرفعج شوايس ٣ ١ رايداتسا يشزومآ هورگ تروص و كف... more رتكد زيهرپ اضريلع ١ رتكد يودف غورف ٢  رتكد ينانمس يرفعج شوايس ٣ ١ رايداتسا يشزومآ هورگ تروص و كف يحارج ، يكشزپنادند هدكشناد ، مرد يتشادهب تامدخ و يكشزپ مولع هاگشناد ينا نارهت ، نارهت ناريا ، ٢ يصصخت رايتسد يشزومآ هورگ يميمرت ،ييابيز و يكشزپنادند هدكشناد ، دهاش هاگشناد ناريا ،نارهت ، ٣ ،كشزپنادند يكشزپنادند هدكشناد ، ينامرد يتشادهب تامدخ و يكشزپ مولع هاگشناد نارهت ، نارهت ناريا ،

Journal of Isfahan Dental School, 2021

Introduction: Dental caries is one of the most common chronic childhood diseases that have a prof... more Introduction: Dental caries is one of the most common chronic childhood diseases that have a profound impact on the health of both the individual and community health. The present study aimed to assess the relationship between Body Mass Index (BMI) and dental caries in Rafsanjan children aged 6-10 years in 2019. Materials & Methods: This study is a cross-sectional study that investigated the relationship between body mass index and dental caries in 215 male and female students (6-10 years old), selected by simple random sampling in four groups: slim, normal BMI, overweight, and obese the relationship between BMI and DMFT / dmft had been determined by Mann-Whitney and Kruskal-Wallis tests and Spearman correlation coefficient. Results: There was a significant inverse relationship between dmft index and children's body mass index (p value < 0.001, r = -0.315). There was no significant difference between the mean DMFT index between lean, normal weight, overweight and obese childr...

Frontiers in Dentistry, 2020

This study assessed the efficacy of the retromandibular antero-parotid approach for open reductio... more This study assessed the efficacy of the retromandibular antero-parotid approach for open reduction and internal fixation (ORIF) of subcondylar fractures. Sixty patients with the mean age of 31.03 years underwent surgical reduction with a 20-25mm incision in the retromandibular area with an antero-parotid transmasseteric approach. All patients were followed between 6 to 12 months. At the end of the first week, six patients exhibited postoperative malocclusion. At the next visits, all patients had optimal occlusion. Maximal interincisal opening (MIO) of 56 patients (93.3%) was >37mm, and only four patients (6.7%) had MIO<37mm. In three patients (5%), weakness of the buccal branch of the facial nerve was noticed postoperatively. No salivary gland complications were seen. The surgical scar was hardly noticeable. Retromandibular access with transmasseteric antero-parotid approach is the technique of choice for treatment of high- and low-level subcondylar fractures with adequate vis...