scholarly journals Clinical efficacy of mineralized collagen (MC) versus anorganic bovine bone (Bio-Oss) for immediate implant placement in esthetic area: a single-center retrospective study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yan Dai ◽  
Jin Xu ◽  
Xiao-Hui Han ◽  
Fu-Zhai Cui ◽  
Dong-Sheng Zhang ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Retrospective Study ◽  
Survival Rate ◽  
Clinical Efficacy ◽  
Bovine Bone ◽  
Implant Placement ◽  
Significant Difference ◽  
Immediate Implant ◽  
Esthetic Area ◽  
Mineralized Collagen

Abstract Background The purpose of this retrospective study was to evaluate the clinical efficacy of mineralized collagen (MC) versus anorganic bovine bone (Bio-Oss) for immediate implant placement in esthetic area. Methods Medical records of Department of Oral and Maxillofacial Surgery of Shandong Provincial Hospital were screened for patients who had been treated with immediate implant implantation in the esthetic area using either MC (Allgens®, Beijing Allgens Medical Science and Technology Co., Ltd., China) or Bio-Oss (Bio-Oss®, Geistlich Biomaterials, Wolhusen, Switzerland), between January 2018 and December 2019. All patients fulfilling the in-/exclusion criteria and following followed for a minimum period of 1 year after surgery were enrolled into the presented study. Implant survival rate, radiographic, esthetic and patient satisfactory evaluations were performed. Results Altogether, 70 patients were included in the study; a total of 80 implants were inserted. All implants had good initial stability. The survival rate of implants was 100% at 1-year follow-up. The differences in horizontal and vertical bone loss between the MC group (0.72 ± 0.26 mm, 1.62 ± 0.84 mm) and the Bio-Oss group (0.70 ± 0.52 mm, 1.57 ± 0.88 mm) were no significant difference statistically no significant 6 months after permanent restoration. Similar results occurred at 12 months after permanent restoration functional loaded. Clinical acceptability defined by pink esthetic score (PES) ≥ 6 (6.07 ± 1.62 vs. 6.13 ± 1.41) was not significantly different between groups. Patient satisfaction estimated by visual analog scale (VAS) was similar (8.56 ± 1.12 vs. 8.27 ± 1.44), and the difference was no significant difference between the two groups. Conclusions The biomimetic MC showed a similar behaviour as Bio-Oss not only in its dimensional tissues changes but also in clinical acceptability and patient satisfaction. Within the limitations of this study, these cases show that MC could be considered as an alternative bone graft in IIP

Clinical efficacy of Mineralized Collagen (MC) versus Bio-Oss for immediate implant implantation in esthetic area: a single-center retrospective clinical study

2021 ◽  
Author(s):  
Yan Dai ◽  
Jin Xu ◽  
Xiao-Hui Han ◽  
Fu-Zhai Cui ◽  
Dong-Sheng Zhang ◽  
...  
Keyword(s):  
Clinical Study ◽  
Survival Rate ◽  
Clinical Efficacy ◽  
Maxillofacial Surgery ◽  
Control Group ◽  
Graft Material ◽  
Retrospective Clinical Study ◽  
Immediate Implant ◽  
Esthetic Area ◽  
Mineralized Collagen

Abstract Background: The purpose of this retrospective clinical study was to evaluate the clinical efficacy of mineralized collagen (MC) versus Bio-Oss for immediate implant implantation in esthetic area. Methods: Medical records of Department of Oral and Maxillofacial Surgery of Shandong Provincial Hospital were screened for patients who had been treated with immediate implant implantation in the esthetic area using either MC( Allgens®) or Bio-Oss®, between January 2018 and December 2019. All patients fulfilling the in-/exclusion criteria and following for a minimum period of 1 year after surgery were enrolled into the presented study. Implant survival rate, radiographic, esthetic and patient satisfactory evaluations were performed.Results: Altogether, 70 patients were included in the study; a total of 80 implants were inserted. All implants had good initial stability after implantation. The survival rate of implants was 100% at 1-year follow-up. The differences in horizontal and vertical bone loss between the Trail group (0.72±0.26mm, 1.62±0.84mm) and the Control group (0.70±0.52 mm, 1.57±0.88mm) were statistically no significant at 6 months after permanent restoration. Similar results occurred at 12 months after permanent restoration. Clinical acceptability defined by PES ≥ 6 (6.07±1.62 vs. 6.13±1.41) was not significantly different between groups. Patient satisfaction estimated by VAS was similar (8.56±1.12 vs. 8.27±1.44), and the difference was not statistically significant between the two groups.Conclusions: The biomimetic MC seems to be a suitable and feasible option for bone graft material in immediate implant implantation.

Evaluation of Peri-implant Tissue Stability and Patient Satisfaction After Immediate Implant Placement in the Esthetic Area: A 3-Year Follow-up of an Ongoing Prospective Study

2020 ◽  
Vol 40 (5) ◽  
pp. 731-739
Author(s):  
Albert Barroso-Panella ◽  
Octavi Ortiz-Puigpelat ◽  
Pablo Altuna-Fistolera ◽  
Ernest Lucas-Taulé ◽  
Federico Hernández-Alfaro ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Prospective Study ◽  
Implant Placement ◽  
Immediate Implant ◽  
Esthetic Area

Maxillary and Mandibular Split Crest Technique with Immediate Implant Placement: A 5-Year Cone Beam Retrospective Study

2021 ◽  
Vol 36 (5) ◽  
pp. 999-1007
Author(s):  
Roberto Crespi ◽  
Paolo Toti ◽  
Ugo Covani ◽  
Giovanni Crespi ◽  
Giovanni-Battista Menchini-Fabris
Keyword(s):  
Retrospective Study ◽  
Cone Beam ◽  
Implant Placement ◽  
Immediate Implant

Digital workflow for image-guided immediate implant placement by using the socket-shield technique and custom abutment in the esthetic area

2021 ◽  
Author(s):  
Alan Jony de Moura e Costa ◽  
Shaban Burgoa ◽  
Otavio Henrique Pinhata-Baptista ◽  
Virgilio Gutierrez ◽  
Arthur Rodriguez Gonzalez Cortes
Keyword(s):  
Digital Workflow ◽  
Image Guided ◽  
Implant Placement ◽  
Immediate Implant ◽  
Esthetic Area

scholarly journals Clinicopathological, Treatment and Event-Free Survival Characteristics in a Moroccan Population of Triple-Negative Breast Cancer

2020 ◽  
Vol 14 ◽  
pp. 117822342090642
Author(s):  
Fatima Zahra Mouh ◽  
Meriem Slaoui ◽  
Rachid Razine ◽  
Mohammed EL Mzibri ◽  
Mariam Amrani
Keyword(s):  
Breast Cancer ◽  
Retrospective Study ◽  
Survival Rate ◽  
Triple Negative Breast Cancer ◽  
Triple Negative ◽  
Menopausal Status ◽  
Age At Menarche ◽  
Event Free Survival ◽  
Free Survival ◽  
Significant Difference

Introduction: Triple-negative breast cancer (TNBC) is a group of breast carcinoma characterized by the lack of expression of estrogen and progesterone hormone receptors (ER, PgR) and HER2. This form is also characterized by its aggressiveness, a low survival rate, and the absence of targeted therapies. This study was planned to evaluate the clinical features, treatment, and prognosis characteristics of TNBC in a population of Moroccan patients. Methods: In this retrospective study, a total of 905 patients diagnosed with breast cancer at the National Institute of Oncology in Rabat, Morocco, have been included. Based on molecular subtype, patients were divided into 2 categories: TNBC and non-TNBC patients. Data were recorded from patients’ medical files and analyzed using SPSS 13.0 software (IBM). Results: Overall, 17% of the patients had TNBC. At diagnosis, the median age of TNBC cases was 47 years, with extreme ages of 40 and 55 years. The median follow-up time was 30 months (10-53 months) and the 3-year survival rate was 76%. No significant difference was observed among the patients in terms of age at diagnosis, age at menarche, age at the time of first birth, nulliparity, oral contraception, and family history of breast cancer. Menopausal status and the number of pregnancy were significantly higher in the non-TNBC group. The percentage of grade 3 (G3) tumors was higher in the TNBC group ( P < .001). Using neoadjuvant, adjuvant chemotherapy and radiotherapy, a net benefit in the event-free survival was registered for the 2 groups. Conclusions: This retrospective study was very informative and showed that women with TNBC had a less favorable prognosis than non-TNBC cases. Clinical data demonstrated that risk factors including age, premenopausal status, parity, hormonal contraceptive use, advanced disease, and a high histologic grade were independently associated with TNBC. However, large tumors and high Scarff-Bloom and Richardson grade prevail in TNBC cases with a higher incidence of lymph node metastases.

Bone Spreader Technique: A Preliminary 3-Year Study

2009 ◽  
Vol 35 (6) ◽  
pp. 289-294 ◽  
Author(s):  
Renato Sussumu Nishioka ◽  
Francisley Avila Souza
Keyword(s):  
Survival Rate ◽  
Invasive Procedure ◽  
Insertion Torque ◽  
Clinical Use ◽  
Medullary Bone ◽  
Cumulative Survival ◽  
The Third ◽  
Implant Placement ◽  
Immediate Implant ◽  
Preliminary Study

Abstract The purpose of this study was to observe the clinical outcome of bone spreading and standardized dilation of horizontally resorbed bone during immediate implant placement using a “screw-type” configuration of expansion and threadformers. Fifty-three patients were included in this study, and 41 edentulous areas in anterior and posterior maxillas were treated. Sixty-eight implants were placed using an insertion torque of at least 40 Ncm. Abutments were delivered 4 to 6 months after implant placement. The overall failure percentage was 4.41% (3 failures). A retrieved analysis of 1 implant removed at 3 years after placement demonstrated bone resorption down to the level of the third thread. The bone spreader technique is different from Summers' osteotome, both in clinical use and in armamentarium. The main advantage of the crest-expanding technique is that it is a less invasive procedure; the facial wall expands after the medullary bone is compressed against the cortical wall. Within the limits of this preliminary study, the cumulative survival rate for this method of implant placement is 95.58% at 3 years. This study confirms that a bone spreader used in the maxilla shows an unusually low failure rate after 3 years.

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