H Akçay, F Kalabalık, B Tatar
The aim of this study was to analyse the vertical location of the posterior superior alveolar artery (PSAA) using a reliable new reference plane regardless of tooth and alveolar bone, and to measure the diameter in each posterior tooth region, which is of relevance to lateral sinus floor elevation surgery. A total of 270 sinuses in 139 patients were examined in this study. The A-plane was defined by A-point and the bilateral jugal points on reconstructed three-dimensional images. The distance from the PSAA to the defined plane was measured in four regions: first premolar (P1), second premolar (P2), first molar (M1), and second molar (M2)...
April 13, 2021: International Journal of Oral and Maxillofacial Surgery
Angélica Letícia Reis Pavanelli, Erica Dorigatti de Avila, Luiz Antônio Borelli Barros-Filho, Francisco de Assis Mollo Junior, Joni Augusto Cirelli, Luiz Antônio Borelli Barros, Rafael Scaf de Molon
Rehabilitation of atrophic maxilla with dental implants is still a challenge in clinical practice especially in cases of alveolar bone resorption due to peri-implantitis and pneumatization of the maxillary sinuses. Several surgical approaches have been employed to reconstruct the lost tissues allowing the proper tridimensional position of the implants. In this context, the aim of this case report is to describe a surgical and prosthetic approach to fully rehabilitate the atrophic maxilla with dental implants...
2021: Case Reports in Dentistry
S A N Lie, R M M A Claessen, C A W Leung, H-A Merten, P A W H Kessler
The aim of this systematic review and meta-analysis was to critically evaluate the currently existing clinical evidence on the efficacy of graftless maxillary sinus membrane elevation for implantation in the atrophic posterior maxilla. A search protocol without limitations to November 2020 was followed by two independent researchers. Randomized controlled trials using the lateral window approach for graftless sinus membrane elevation were included. Uncontrolled, retrospective, non-comparative studies, case reports, and experimental studies in animals or cadavers were excluded...
April 10, 2021: International Journal of Oral and Maxillofacial Surgery
Yiping Wei, Bo Zhang, Gang Yang, Tao Xu, Wenjie Hu, Kwok-Hung Chung
BACKGROUND: Information regarding the reaction of bone augmentation in terms to sinus mucosa thickness of periodontally compromised molar extraction sites is limited. This retrospective study aimed to analyze the effect of ridge preservation procedures following the extraction of molars with severe periodontitis on the healing pattern of adjacent maxillary sinus mucosal membranes. METHODS: Thirty-one periodontally compromised maxillary molar teeth either receiving ridge preservation (test group, n = 20) or undergoing spontaneous healing (control group, n = 11) were investigated...
April 12, 2021: BMC Oral Health
Marco Malak Fayek, Maha Eshak Amer, Ahmed Mohamed Bakry
Purpose: This study was conducted to evaluate the accuracy of cone-beam computed tomography (CBCT) in detecting the posterior superior alveolar (PSA) artery canal in a sample of the Egyptian population. Materials and Methods: CBCT images of 600 maxillary sinuses of patients were examined for the presence or absence of the PSA artery along the lateral wall of the maxillary sinus, and for the diameter and type of the canal in relation to age and sex. The distances from the canal to the alveolar crest and sinus floor were also measured...
March 2021: Imaging Science in Dentistry
Hachimia Fahes, Carole Chakar, Nabil Ghosn, Nadim Mokbel
The purpose of this study was to evaluate vertical and horizontal alveolar resorption after the extraction of eight single maxillary molars using solvent-dehydrated bone allograft (Puros) covered with a nonresorbable membrane for ridge preservation. At implant placement 4 months later, ridge dimensions were measured clinically and radiographically and compared to baseline, and a histologic analysis was performed. The mean buccal height decreased by 1.51 mm at midpoint, 0.88 mm mesially, and 1.16 mm distally...
March 2021: International Journal of Periodontics & Restorative Dentistry
Won-Bae Park, Ji-Young Han, Kyung-Lhi Kang
Maxillary sinus floor augmentation (MSFA) is widely used and considered a predictable procedure for implant placement. However, the influence of MSFA on implant survival and marginal bone loss (MBL) is still inconclusive. The purpose of this retrospective observational study is to evaluate the long-term genuine influence of MSFA on the survival and MBL of implants by comparing those with and without MSFA only in maxillary molars within the same patients. Thirty-eight patients (28 male and 10 female), with a total of 119 implants, received implants with and without MSFA, and were followed up for 5...
March 25, 2021: Journal of Clinical Medicine
Jakub Hadzik, Paweł Kubasiewicz-Ross, Izabela Nawrot-Hadzik, Tomasz Gedrange, Artur Pitułaj, Marzena Dominiak
Short 6 mm dental implants are considered as an alternative to the maxillary sinus elevation and bone augmentation procedure where there is a reduced alveolar ridge height. The aim of this study was to compare the implant survival rate between short dental implants (6 mm) and regular length implants (11-13 mm) when placed in combination with bone grafting and loaded with a single non splinted crown, seven years after placing the implant. It was conducted as a controlled clinical study of 30 patients with partial edentulism in the posterior maxilla...
March 1, 2021: Journal of Clinical Medicine
Wilhelmus F Bouwman, Nathalie Bravenboer, Christiaan M Ten Bruggenkate, Francis A Eijsackers, Najada Stringa, Engelbert A J M Schulten
This study evaluates the radiological changes in tissue height after maxillary sinus floor elevation (MSFE) using three types of calcium phosphate ceramics over a period of up to 5 years after dental implant placement. In 163 patients, MSFE was performed. Three groups of patients were distinguished and treated based on the type of calcium phosphate ceramic used and radiologically evaluated: 40 patients with β-tricalcium phosphate (β-TCP), 76 patients with biphasic calcium phosphate (BCP) 20% hydroxyapatite (HA)-80% β-TCP, and 47 patients with BCP 60% HA-40% β-TCP...
March 17, 2021: Materials
Koudai Nagata, Kei Fuchigami, Ryoji Kitami, Yurie Okuhama, Kana Wakamori, Hirokazu Sumitomo, Hyunjin Kim, Manabu Okubo, Hiromasa Kawana
BACKGROUND: In locations where the alveolar bone height is low, such as at the maxillary molars, implant placement can be difficult, or even impossible, without procedures aimed at generating new bone, such as sinus lifts. Various types of bone graft materials are used after a sinus lift. In our study, a three-dimensional image analysis using a volume analyzer was performed to measure and compare the volume of demineralized bovine bone mineral (Bio-Oss®) and carbonate apatite (Cytrans®) after a sinus lift, as well as the amount of bone graft material resorption...
March 23, 2021: International Journal of Implant Dentistry
M E Toprak, M S Ataç
Maxillary sinus septa increase the risk of membrane perforation during sinus floor elevation and grafting operations. This study was designed to evaluate the prevalence, morphology, localisation, aetiology, and orientation of maxillary sinus septa in dentate, completely edentulous, and partially edentulous sinus regions using cone beam computed tomography (CBCT), and possible patient-related factors were also assessed. Data from 300 patients (600 sinuses), 160 women and 140 men, with a mean (SD) age of 50.72 (13...
August 19, 2020: British Journal of Oral & Maxillofacial Surgery
K N Teixeira, M A Sakurada, A G Philippi, T M S V Gonçalves
The identification and management of interfering maxillary sinus septa is essential to anticipate and prevent membrane perforation and other complications during sinus grafting. A computer-guided sinus approach based on a new magnetic stackable surgical guide was planned, to transfer the exact position of the septum and optimize the positioning of the lateral access windows. This technique reduces the risk of sinus membrane injury, thereby increasing the safety and efficacy of the procedure.
March 4, 2021: International Journal of Oral and Maxillofacial Surgery
Motohiro Munakata, Kikue Yamaguchi, Daisuke Sato, Naoko Yajima, Noriko Tachikawa
BACKGROUND: During implant treatment in the maxillary molar area, maxillary sinus floor augmentation is often performed to ameliorate the reduced alveolar bone height attributable to bone remodeling and pneumatization-induced expansion of the maxillary sinus. However, this augmentation may cause complications such as misplaced implants, artery damage, and maxillary sinus mucosal perforation; infections like maxillary sinusitis; and postsurgical complications such as bone graft leakage and postoperative nasal hemorrhaging...
March 2, 2021: International Journal of Implant Dentistry
Rajashri Abhay Kolte, Abhay Pandurang Kolte, Priyanka Sunil Rahate, Pranjali Vijaykumar Bawankar
Background: One of the most challenging anatomical conditions to manage during sinus augmentation using lateral window approach is the alveolar antral artery (AAA) when it is unusually wide in diameter and passes through the area of the osteotomy with a complete intraosseous course. The purpose of this study was to investigate the association of location and diameter of AAA to the crest of alveolar bone in dentate and partially edentulous patients using cone-beam computed tomography (CBCT)...
January 2021: Journal of Indian Society of Periodontology
P Carosi, C Lorenzi, F Lio, M Laureti, N Ferrigno, C Arcuri
The aim of this systematic review was to evaluate survival rate of short dental implants placed in the posterior area of the maxilla. The electronic literature search of studies published between January 1, 2010 and February 29, 2020 was performed using specific word combinations. The outcome was to meta-analyse the implant survival rate (ISR). The search generated 238 potential studies. After screening procedures, only nine randomized controlled trials fulfilled the inclusion criteria and were selected for qualitative and quantitative analysis...
February 23, 2021: International Journal of Oral and Maxillofacial Surgery
Shishir Ram Shetty, Saad Wahby Al Bayatti, Hesham Marei, Raghavendra Shetty, Hossam Abdelatty Abdelmagyd, Alexander Maniangat Luke
Objectives: : The purpose of the study was to assess the occurrence, location, and dimensions of the intraosseous vascular canal in the lateral wall of the maxillary antrum using cone-beam computed tomography (CBCT). Materials and Methods: In this retrospective study, we examined 400 CBCT scans from our archive of patients who had earlier reported to a dental teaching hospital in the United Arab Emirates. The prevalence, location, and dimensions of the lateral antral intraosseous canal (LAIC) in the maxillary antrum were evaluated by 2 examiners using standardised methods...
February 28, 2021: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Carlo Rengo, Antonino Fiorino, Alessandro Cucchi, Antonio Nappo, Emanuele Randellini, Paolo Calamai, Marco Ferrari
OBJECTIVES: Oral surgery morbidity is highly variable based on patients' characteristics and kind of surgical intervention. However, poor data are available in the literature regarding patient outcomes after oral surgery. The aim of this retrospective study was to evaluate patient-reported outcome and complication rates after maxillary sinus floor elevation. MATERIALS AND METHODS: Data from the records of patients undergoing maxillary sinus elevation have been collected from a private dental office...
February 23, 2021: Clinical Oral Investigations
Liting Gai, Xin Luo, Ye Guan, Fuming He
PURPOSE: Using panoramic radiograph and CBCT to compare the measurement errors of the residual bone height in the same site before implant placement in the posterior maxilla and endo-sinus bone gain after osteotome sinus floor elevation without grafting, and to evaluate endo-sinus bone augmentation before stage-two surgery with CBCT. Also, some related factors of new bone formation in the sinus were analyzed, such as small bone block elevated by osteotome at the implant apex intraoperatively...
January 2021: International Journal of Oral & Maxillofacial Implants
Renzo Guarnieri, Luca Savio, Alessandro Bermonds, Luca Testarelli
Objectives: The aim of this retrospective multicentre cohort study was to compare clinical outcomes, soft tissues conditions and differences in marginal bone loss between implants with a laser-microgrooved collar placed in posterior maxillary extraction sockets grafted by 4 to 5 months, and in posterior maxillary pristine bone (spontaneously healed posterior maxillary extraction sockets) by means of osteotome-mediated sinus floor elevation, over a period of 5 years after functional loading...
October 2020: Journal of Oral & Maxillofacial Research
Wenjie Zhou, Feng Wang, Marko Magic, Minjie Zhuang, Jian Sun, Yiqun Wu
OBJECTIVES: To assess how anatomy and osteogenesis correlated with results of maxillary sinus floor augmentation (MSFA). MATERIALS AND METHODS: Patients with partial edentulism and advanced atrophy of the posterior maxillae (≤ 4 mm residual bone height, RBH) underwent MSFA with sole deproteinized bovine bone matrix (DBBM) through a lateral approach. After a 6 to 9-month healing period, bone core biopsies were obtained from the sites of implant insertion for histological evaluation...
February 11, 2021: Clinical Oral Investigations
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