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Sulyhan-Sulyhan K, Barberá-Millán J, Larrazábal-Morón C, Espinosa-Giménez J, Gómez-Adrián MD. Radiographic Study of Transcrestal Sinus Floor Elevation Using Osseodensification Technique with Graft Material: A Pilot Study. Biomimetics (Basel) 2024; 9:276. [PMID: 38786485 PMCID: PMC11118885 DOI: 10.3390/biomimetics9050276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
This pilot study aimed to evaluate the level of implant success after transcrestal sinus floor elevation (tSFE) using the osseodensification technique (OD) combined with beta-tricalcium phosphate (β-TCP) by analyzing clinical and radiographic results. Moreover, the increase in bone height was analyzed immediately after surgery, 3 months after, and before loading by taking standardized radiographic measurements. Thirteen patients, four males and nine females, with a mean age of 54.69 ± 5.86 years, requiring the placement of one implant in the upper posterior maxilla, with a residual bone height of <8 mm and a minimum bone width of 5 mm, participated in the study. The bone gain data was obtained using cone-beam computed tomography (CBCT) immediately after surgery and twelve months after the placement. The correlation between initial and final bone height with implant stability was also assessed. The results were analyzed using SPSS 23 software (p < 0.05). The results of the study indicated a 100% implant success rate after a follow-up period of twelve months. Preoperative main bone height was 5.70 ± 0.95 mm. The osseodensification technique allowed a significant increase of 6.65 ± 1.06 mm immediately after surgery. After a twelve-month follow-up, a graft material contraction of 0.90 ± 0.49 mm was observed. No correlation was observed between the bone height at the different times of the study and the primary stability of the implant. Considering the limitations of the size sample of this study, the osseodensification technique used for transcrestal sinus lift with the additional bone graft material (β-TCP) may provide a predictable elevation of the maxillary sinus floor, allowing simultaneous implant insertion with adequate stability irrespective of bone height limitations.
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Affiliation(s)
- Khrystyna Sulyhan-Sulyhan
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
| | - Javier Barberá-Millán
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
- Doctoral School, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain
| | - Carolina Larrazábal-Morón
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
| | - Julián Espinosa-Giménez
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
| | - María Dolores Gómez-Adrián
- Department of Dentistry, Faculty of Medicine and Health Sciences, Catholic University of Valencia San Vicente Mártir, 46001 Valencia, Spain; (K.S.-S.); (C.L.-M.); (J.E.-G.); (M.D.G.-A.)
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Lombardo G, D'Agostino A, Nocini PF, Signoriello A, Zangani A, Pardo A, Lonardi F, Trevisiol L. Clinical outcomes and periodontal conditions of dental implants placed in free fibula flaps (FFF): a retrospective study with a mean follow-up of 6 years. Clin Oral Investig 2023; 27:7737-7751. [PMID: 37917356 PMCID: PMC10713700 DOI: 10.1007/s00784-023-05364-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/24/2023] [Indexed: 11/04/2023]
Abstract
OBJECTIVES Up-to-date literature regarding long-term success of implant rehabilitations after microvascular reconstructions with free fibula flap (FFF) is still very scarce. This study aimed to evaluate clinical outcomes, especially related to oral hygiene conditions, of patients rehabilitated with this technique. MATERIALS AND METHODS A total of 25 patients who underwent maxillofacial reconstructive surgery with FFF were retrospectively evaluated for soft tissues conditions, oral hygiene habits, and implant survival and success, assessed with a mean follow-up of 6 (range 2-15) years after loading. RESULTS Fourteen patients received full-arch fixed prostheses and 11 removable bar-supported overdentures. At the follow-up evaluation, 52% of prostheses did not allow proper accessibility for oral hygiene. Overall prosthetic survival was 100%, and implant survival and success were respectively 93.6% and 72%. Prevalence of peri-implantitis was 29% at implant level and that at patient level 96%. CONCLUSIONS Six-year clinical outcomes of this study reveal that poor oral hygiene practices and compliance by patients who underwent maxillofacial reconstruction with FFF are significantly associated with peri-implant disease. CLINICAL RELEVANCE Findings of the present study underline the need by clinicians for a careful assessment, in reference to a specific implant therapy, of patient's prosthetic accessibility for oral hygiene procedures.
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Affiliation(s)
- Giorgio Lombardo
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Antonio D'Agostino
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Pier Francesco Nocini
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Annarita Signoriello
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy.
| | - Alessandro Zangani
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Alessia Pardo
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Fabio Lonardi
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
| | - Lorenzo Trevisiol
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134, Verona, Italy
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Yang Y, Liu Y, Yuan X, Ren M, Chen X, Luo L, Zheng L, Liu Y. Three-dimensional finite element analysis of stress distribution on short implants with different bone conditions and osseointegration rates. BMC Oral Health 2023; 23:220. [PMID: 37061667 PMCID: PMC10105927 DOI: 10.1186/s12903-023-02945-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/05/2023] [Indexed: 04/17/2023] Open
Abstract
OBJECTIVE This experiment aimed to investigate the effects of bone conditions and osseointegration rates on the stress distribution of short implants using finite element analysis and also to provide some reference for the application of short implants from a biomechanical prospect. MATERIALS AND METHODS Anisotropic jaw bone models with three bone conditions and 4.1 × 6 mm implant models were created, and four osseointegration rates were simulated. Stress and strain for the implants and jaws were calculated during vertical or oblique loading. RESULTS The cortical bone area around the implant neck was most stressed. The maximum von Mises stress in cortical bone increased with bone deterioration and osseointegration rate, with maximum values of 144.32 MPa and 203.94 MPa for vertical and inclined loading, respectively. The osseointegration rate had the greatest effect on the maximum principal stress in cortical bone of type III bone, with its value increasing by 63.8% at a 100% osseointegration rate versus a 25% osseointegration rate. The maximum and minimum principal stresses under inclined load are 1.3 ~ 1.7 and 1.4 ~ 1.8 times, respectively, those under vertical load. The stress on the jaw bone did not exceed the threshold when the osseointegration rate was ≥ 50% for Type II and 100% for Type III. High strain zones are found in cancellous bone, and the maximum strain increases as the bone condition deteriorate and the rate of osseointegration decreases. CONCLUSIONS The maximum stress in the jaw bone increases as the bone condition deteriorates and the osseointegration rate increases. Increased osseointegration rate reduces cancellous bone strain and improves implant stability without exceeding the yield strength of the cortical bone. When the bone condition is good, and the osseointegration ratio is relatively high, 6 mm short implants can be used. In clinical practice, incline loading is an unfavorable loading condition, and axial loading should be used as much as possible.
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Affiliation(s)
- Yunhe Yang
- Graduate School of Dalian Medical University, Dalian, China
| | - Yuchen Liu
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
| | - Xi Yuan
- Graduate School of Dalian University, Dalian, China
| | - Mingfa Ren
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
- State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, China
| | - Xiaodong Chen
- Department of Prosthodontics, Dalian Stomatological Hospital, Dalian, 116021, China
| | - Lailong Luo
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, China
| | - Lang Zheng
- Graduate School of Dalian University, Dalian, China
| | - Yang Liu
- Department of Prosthodontics, Dalian Stomatological Hospital, Dalian, 116021, China.
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Lombardo G, Signoriello A, Marincola M, Liboni P, Faccioni P, Zangani A, D’Agostino A, Nocini PF. Short and Ultra-Short Implants, in Association with Simultaneous Internal Sinus Lift in the Atrophic Posterior Maxilla: A Five-Year Retrospective Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15227995. [PMID: 36431480 PMCID: PMC9695726 DOI: 10.3390/ma15227995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 05/31/2023]
Abstract
Recent short-term studies suggested the use of short and ultra-short implants in association with a modified osteotome sinus floor elevation (internal sinus lift) technique for the treatment of edentulous resorbed posterior maxilla. The aim of this retrospective study was to investigate this hypothesis in locking-taper implants with a mid-term follow-up of 5 years. Overall, 155 implants (32, 100, and 23 of, respectively, 5.0 mm, 6.0 mm, and 8.0 mm length) were positioned in the atrophic upper maxilla of 79 patients, and 151 implants were loaded with single crowns. Overall implant survival after 5 years was 94.84%. Implant survival for each length group was 93.75%, 94%, and 100% for 5.0, 6.0, and 8.0 mm length, respectively. Preoperative residual crestal bone height of 4.45 (1.3) mm increased to 9.25 (2.13) mm after implant placement and settled at 6.35 (1.73) mm after loading and at 5.25 (1.68) mm at follow-up. Elevation of the Schneiderian membrane was 4.8 (2.46) mm after implant placement, 3.06 (1.3) mm after loading, and 1.46 (1.06) mm at follow-up. Mean variations of peri-implant crestal bone loss and first bone-to-implant contact point were, respectively, -0.36 (1.3) mm and -0.62 (1.15) mm. It can be confirmed that internal sinus lift procedure revealed stable bone gain and negligible resorption at mid-term follow-up for atrophic upper crests with reduced height.
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Affiliation(s)
- Giorgio Lombardo
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Annarita Signoriello
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Mauro Marincola
- Dental Implant Unit, Research Department, Faculty of Dentistry, University of Cartagena, Cartagena 130001, Colombia
| | - Pietro Liboni
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Paolo Faccioni
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Alessandro Zangani
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Antonio D’Agostino
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
| | - Pier Francesco Nocini
- Dentistry and Maxillo-Facial Surgery Unit, Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), University of Verona, Piazzale L.A. Scuro 10, 37134 Verona, Italy
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Cheng YC, Ewers R, Morgan K, Hirayama M, Murcko L, Morgan J, Bergamo ETP, Bonfante EA. Antiresorptive therapy and dental implant survival: an up to 20-year retrospective cohort study in women. Clin Oral Investig 2022; 26:6569-6582. [PMID: 36001145 DOI: 10.1007/s00784-022-04609-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/26/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To investigate the effects of antiresorptive treatment on the survival of plateau-root form dental implants. MATERIALS AND METHODS Patients undergoing antiresorptive therapy via oral or intravenous administration as well as patients not undergoing antiresorptive therapy and healthy control patients were included in this retrospective cohort study. In total, 1472 implants placed in 631 postmenopausal patients (M: 66.42 ± 9.10 years old), who were followed for a period of up to 20 years (8.78 ± 5.68 years). Kaplan-Meier survival analysis was performed, and univariate and multivariate Cox regression, clustered by each patient, was used to evaluate and study factors affecting the survival of their implants. RESULTS Implants placed in patients undergoing oral antiresorptive treatment presented significantly higher survival rates, than implants placed in the osteoporosis/osteopenia control cohort (p value < 0.001), and similar survival rates, when compared to healthy controls (p value = 0.03). Additionally, clustered univariate and multivariate Cox regression analysis also revealed higher implant survival when oral antiresorptive drugs (p value = 0.01 and 0.007, respectively) were used, and lower implant survival in the presence of untreated osteoporosis/osteopenia (p value = 0.002 and 0.005, respectively). Overall, the 20-year implant survival in osteoporotic patients undergoing antiresorptive therapy was 94%. For the failed implants, newly replaced implants in patients under antiresorptive treatment presented a 10-year survival of 89%. CONCLUSIONS Long-term plateau-root form implant survival in osteoporotic patients taking oral antiresorptives was similar to a healthy population and significantly higher than the untreated controls. CLINICAL RELEVANCE These results suggest that plateau-root form implants provide a robust solution for treating tooth loss in patients, who are undergoing antiresorptive therapy.
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Affiliation(s)
- Yu-Chi Cheng
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Rolf Ewers
- University Hospital for Cranio-Maxillofacial and Oral Surgery and CMF Institute Vienna, Vienna, Austria
| | | | | | | | | | - Edmara T P Bergamo
- Department of Prosthodontics and Periodontology, University of Sao Paulo - Bauru School of Dentistry, 9-75 Octavio Pinheiro Brizola, Bauru, SP, 17012-901, Brazil.
| | - Estevam A Bonfante
- Department of Prosthodontics and Periodontology, University of Sao Paulo - Bauru School of Dentistry, 9-75 Octavio Pinheiro Brizola, Bauru, SP, 17012-901, Brazil
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Lombardo G, Signoriello A, Marincola M, Liboni P, Bonfante EA, Nocini PF. Survival rates of ultra-short (<6 mm) compared with short locking-taper implants supporting single crowns in posterior areas: A 5-year retrospective study. Clin Implant Dent Relat Res 2021; 23:904-919. [PMID: 34796619 PMCID: PMC9299664 DOI: 10.1111/cid.13054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/22/2021] [Accepted: 10/18/2021] [Indexed: 12/27/2022]
Abstract
Background Short and ultra‐short implants represent a predictable treatment, in terms of implant survival, with patients presenting insufficient available bone volumes. Moreover, single crown restorations represent a gold standard in terms of oral hygiene. Purpose The aim of this retrospective study was to evaluate implant survival, marginal bone loss, and peri‐implant complications in 333 locking‐taper short and ultra‐short implants. Materials and Methods Implants were placed in the maxillary and mandibular posterior regions of 142 patients. Clinical and radiographic examinations were performed at 5‐year recall appointments. Results All implants placed consisted of 8.0‐, 6.0‐, and 5.0‐mm length, 38.14%, 34.53%, and 27.33%, respectively. Three hundred thirty‐two implants (one early failure) were rehabilitated with single crowns in 141 patients. In 45.48% of the implants the crown‐to‐implant ratio was ≥2, with a mean value of 1.94. Overall implant‐based survival after 5 years of follow‐up was 96.10%: 96.85%, 95.65%, and 95.60% for 8.0‐, 6.0‐, and 5.0‐mm length implants, respectively (p = 0.82). Overall patient‐based survival was 91.55%. Regarding crestal bone level variations, average crestal bone loss and apical shift of the “first bone‐to‐implant contact point” position were 0.69 and 0.01 mm, respectively. Setting the threshold for excessive bone loss at 1 mm, during the time interval from loading to follow‐up, 28 implants experienced loss of supporting bone greater than 1 mm: 19 of them (67.85%) were surgically treated with a codified surgical regenerative protocol. After 60 months, a peri‐implantitis prevalence of 5.94% was reported, with an overall implant success of 94.06%: 95.93%, 92.73%, and 93.10% for 8.0‐, 6.0‐, and 5.0‐mm length implants, respectively (p = 0.55). Conclusion Long‐term outcomes suggest that short and ultra‐short locking‐taper implants can be successfully restored with single crowns in the posterior area of the maxilla and mandible.
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Affiliation(s)
- Giorgio Lombardo
- Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), School of Dentistry, University of Verona, Verona, Italy
| | - Annarita Signoriello
- Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), School of Dentistry, University of Verona, Verona, Italy
| | - Mauro Marincola
- Research Department, Dental Implant Unit, Faculty of Dentistry, University of Cartagena, Cartagena, Colombia
| | - Pietro Liboni
- Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), School of Dentistry, University of Verona, Verona, Italy
| | - Estevam A Bonfante
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of Sao Paulo, Bauru, Brazil
| | - Pier F Nocini
- Department of Surgery, Dentistry, Paediatrics and Gynaecology (DIPSCOMI), School of Dentistry, University of Verona, Verona, Italy
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Filipov I, Bolognesi F, Chirila L, Cristache CM, Corinaldesi G, Park KB. Preliminary Study with the Use of a Titanium Mesh as Space Maker and Implant Primary Stabilization for One-Stage Sinus Lift in Cases with Less Than 1.5 mm Residual Bone. J Clin Med 2021; 10:jcm10214853. [PMID: 34768375 PMCID: PMC8584652 DOI: 10.3390/jcm10214853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/08/2021] [Accepted: 10/19/2021] [Indexed: 11/23/2022] Open
Abstract
(1) Background: In the lateral area of the maxilla, the alveolar bone can lose significant volume due to maxillary sinus pneumatization following teeth extractions. This preliminary study evaluated the effectiveness of a novel technique for one-stage sinus lifting and simultaneous implant placement in cases with less than 1.5 mm residual alveolar bone. The subsequent survival rate at 1-year post-occlusal loading was assessed. (2) Methods: 15 patients were selected, the main inclusion criteria were the partially edentulous area in the posterior maxilla with alveolar bone height of less than 1.5 mm below the sinus. All of the patients underwent one-stage sinus lifting, along with simultaneous implant placement using a “butterfly” anchorage device to optimize the primary stability and xenograft bone as graft material. At 6 to 9 months after surgery, the anchorage device was removed and implants were loaded. Panoramic x-ray images were used to assess the new bone formation, while the biological stability was measured using resonance frequency analysis. (3) Results: 15 implants were inserted. The mean implant stability quotient (ISQ) value was 71.3 (SD = ±2.51) and the mean healing period was 7.3 (SD = ±1.23) months. The mean bone height after the healing period was 14.4 (SD = ±2.05). A statistically significant correlation was found between the healing period and the ISQ value (Spearman rho = 0.684, sig. = 0.005). No statistically significant correlation was found between the ISQ value and the new regenerated bone height (Person r = 0.389, sig. = 0.152). Smoking was identified as a risk factor involved in postoperative complications. (4) Conclusions: The results of the present preliminary study demonstrated that the proposed “butterfly” technique was effective when performing one-stage sinus lifting and simultaneous implant placement in cases with less than 1.5 mm of residual alveolar bone. The survival rate was 100% at 1-year post occlusal loading.
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Affiliation(s)
- Iulian Filipov
- Department of Oral and Maxillofacial Surgery, “Queen Maria” Military Emergency Hospital, 9 Pietii Str., 500007 Brasov, Romania
- Department of Dental Techniques, Faculty of Midwifery and Medical Assisting (FMAM), “Carol Davila” University of Medicine and Pharmacy, 8, Eroilor Sanitari Blvd, 050474 Bucharest, Romania
- Correspondence: (I.F.); (C.M.C.)
| | - Federico Bolognesi
- Oral and Maxillo-Facial Surgery Unit, IRCCS Policlinico di Sant’Orsola, Via Giuseppe Massarenti, 9, 40138 Bologna, Italy;
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 59 Via S. Vitale, 40100 Bologna, Italy;
| | - Lucian Chirila
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Carol Davila” University of Medicine and Pharmacy, 19 Plevnei Ave., 010221 Bucharest, Romania;
| | - Corina Marilena Cristache
- Department of Dental Techniques, Faculty of Midwifery and Medical Assisting (FMAM), “Carol Davila” University of Medicine and Pharmacy, 8, Eroilor Sanitari Blvd, 050474 Bucharest, Romania
- Correspondence: (I.F.); (C.M.C.)
| | - Giuseppe Corinaldesi
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 59 Via S. Vitale, 40100 Bologna, Italy;
| | - Kwang Bum Park
- Department of Implantology and Periodontology, Daegu Mir Dental Hospital, Jung-gu, Daegu 41934, Korea;
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Pellegrino G, Lizio G, Rossi F, Tuci L, Ferraioli L, Stefanelli LV, Di Carlo S, De Angelis F. A 4 mm-Long Implant Rehabilitation in the Posterior Maxilla with Dynamic Navigation Technology: A Case Report after a Three-Years Post-Loading Follow-Up. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18189808. [PMID: 34574728 PMCID: PMC8466597 DOI: 10.3390/ijerph18189808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022]
Abstract
The use of short (<8 mm long) and ultra-short (<6 mm long) implants allows the prosthetic rehabilitation of the posterior ridges of the jaws avoiding reconstructive procedures. Nevertheless, this approach requires vast experience to ensure the primary stability of the fixture in a correct position. Computer-aided implantology (CAI) achieves better results than the free-hand one in terms of placement accuracy, reducing the surgical risks and the operative timings. Dynamic navigation (DN) allows the surgeon to track the position and movements of the drill in real-time on the CT imaging data set. It is more versatile than the computed static system, enabling the operator to change the guidance coordinates according to the intra-operative feedbacks. A mono-edentulous upper right first molar site was rehabilitated with a four mm-long implant to avoid reconstructive techniques, drastically rejected by the patients. The case was managed within a DN protocol considering the minimal available bone and the prosthetic demands. The phases of this procedure were strictly documented up to a 3-year follow-up. No intra-operative problems occurred, and adequate primary stability of the implant was obtained. The prosthetic loading was carried out within only six weeks without any complications. No variation of the baseline clinical scenario as evidenced clinically and radiographically at the end of follow-up. No similar cases are reported in the literature.
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Affiliation(s)
- Gerardo Pellegrino
- Oral Surgery Unit, Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy; (G.P.); (F.R.); (L.T.); (L.F.)
| | - Giuseppe Lizio
- Oral Surgery Unit, Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy; (G.P.); (F.R.); (L.T.); (L.F.)
- Correspondence:
| | - Fabio Rossi
- Oral Surgery Unit, Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy; (G.P.); (F.R.); (L.T.); (L.F.)
| | - Lorenzo Tuci
- Oral Surgery Unit, Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy; (G.P.); (F.R.); (L.T.); (L.F.)
| | - Lorenzo Ferraioli
- Oral Surgery Unit, Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Vitale 59, 40125 Bologna, Italy; (G.P.); (F.R.); (L.T.); (L.F.)
| | - Luigi Vito Stefanelli
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00185 Rome, Italy; (L.V.S.); (S.D.C.); (F.D.A.)
| | - Stefano Di Carlo
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00185 Rome, Italy; (L.V.S.); (S.D.C.); (F.D.A.)
| | - Francesca De Angelis
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00185 Rome, Italy; (L.V.S.); (S.D.C.); (F.D.A.)
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Magdy M, Abdelkader MA, Alloush S, Fawzy El-Sayed KM, Nawwar AA, Shoeib M, ElNahass H. Ultra-short versus standard-length dental implants in conjunction with osteotome-mediated sinus floor elevation: A randomized controlled clinical trial. Clin Implant Dent Relat Res 2021; 23:520-529. [PMID: 34101342 DOI: 10.1111/cid.12995] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND The ability to restore missing teeth with dental implants is dictated by the available bone and by the presence of anatomical structures. The potential to insert ultrashort implants avoids additional surgical procedures and its inherent complications. The last European Association of Dental Implantologists consensus in 2016 defined ultrashort implants and standard-length dental implants as <6 and >8 mm, respectively. PURPOSE The present study aimed to investigate whether single standing ultrashort dental implants (US) could provide a viable therapeutic alternative to osteotome mediated sinus floor elevation in combination with standard-length dental implants (SL) 10 mm in posterior maxillary rehabilitation with reduced bone height. MATERIALS AND METHODS The study was conducted as a prospective parallel group controlled clinical trial with a 12 month follow-up, where 48 implants were randomized into two groups; US-group (5.5 mm) and SL-group (10 mm) implants placed with osteotome-mediated sinus floor elevation. Crestal bone loss (CBL) was defined as the study's primary outcome, while implant survival, buccal bone thickness, implant stability, probing depth, gingival recession, and adverse effects were assessed as secondary outcomes. RESULTS Mesial CBL was 1.13 ± 0.52 mm in SL- and 0.72 ± 0.52 mm in US-group (P = .021), while distal CBL was 1.44 ± 0.72 mm in SL- and 0.91 ± 0.69 mm in US-group at 12 months (P = .0179). Regarding implant stability, probing depth, and gingival recession there was no statistically significant difference between the two groups. Regarding implants' survival, three implants were lost in the US-while only one implant was lost in the SL-group (P = .6085; Fisher's exact test). Nevertheless, the ultrashort implants were associated with a tripling of the failure rate and uncertainty where the true failure rate is uncertain (relative risk 3.0; confidence interval 0.3-26.8). CONCLUSIONS Within the current trial's limitations, US-appear appear promising as they are associated less postoperative discomfort, minimal invasiveness and less CBL. However, larger sample size is required to determine whether the ultrashort have an acceptable survival rate.
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Affiliation(s)
- Mostafa Magdy
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt
| | - Mennatalla A Abdelkader
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt
| | - Sobhy Alloush
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt
| | - Karim M Fawzy El-Sayed
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt.,Clinic for Conservative Dentistry and Periodontology, Christian Albrechts-Universität zu, Kiel, Germany
| | - Alaa A Nawwar
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt
| | - Mona Shoeib
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt
| | - Hani ElNahass
- Faculty of Dentistry, Department of Oral Medicine and Periodontology, Cairo University, Cairo, Egypt
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Assessment of Peri-Implant Soft Tissues Conditions around Short and Ultra-Short Implant-Supported Single Crowns: A 3-Year Retrospective Study on Periodontally Healthy Patients and Patients with a History of Periodontal Disease. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249354. [PMID: 33327506 PMCID: PMC7764932 DOI: 10.3390/ijerph17249354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/01/2020] [Accepted: 12/11/2020] [Indexed: 01/01/2023]
Abstract
The aim of this retrospective study was to evaluate implant survival, marginal bone loss and peri-implant complications in 326 short and ultra-short implants. Implants were placed in the maxillary and mandibular posterior regions of 140 patients with (PP) and without (NPP) a history of periodontal disease. Clinical and radiographic examinations were performed at 3-year recall appointments. The 8.0, 6.0 and 5.0 mm-length implants placed in PP and NPP were respectively 43.75% and 38.46%, 35.10% and 34.19%, 21.15% and 27.35%; 325 implants (one early failure) were rehabilitated with single crowns in 139 patients. Overall implant survival after 3 years of follow-up was 97.55%, 98.08% and 96.61% for PP and NPP (p = 0.46). Crestal bone level variations were not statistically different among PP and NPP; 15.41% of implants presented signs of mucositis, 14.71% and 16.67% in PP and NPP (p = 0.64). Setting the threshold for bone loss at 2 mm after 36 months, peri-implantitis prevalence was 2.2%, 1.96% and 2.63% in PP and NPP (p = 0.7). Overall implant success was 82.39%, 83.33% and 80.7% for PP and NPP (p = 0.55). Short-term outcomes suggest that short and ultra-short locking-taper implants can successfully be restored with single crowns in the posterior jaws both in PP and NPP.
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