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Back LS, Silva J, Morsch CS, Tumedei M, Magini RDS, Piatelli A, Benfatti CAM. Clinical Performance of 170 Frictional Morse Taper Implants: 2 Years Follow-Up. J ORAL IMPLANTOL 2024; 50:127-135. [PMID: 38530824 DOI: 10.1563/aaid-joi-d-23-00054] [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] [Indexed: 03/28/2024]
Abstract
This study evaluated the clinical survival rates of 170 Morse taper implants through clinical and mechanical parameters in different therapeutic approaches such as single crowns, fixed partial prostheses, and fixed full-arch prostheses. Patients referred to the Center on Education and Research on Dental Implants from May 2017 to July 2018 with the indication for dental implant therapy, aged >18 years, without periodontal disease, recent evidence of inflammatory activity or other oral disorders, current pregnancy, uncontrolled diabetes mellitus or heavy smoking habit were included in this study. After 12 weeks of healing since the implants were placed in the mandible and after 16 weeks following implants placed in the maxilla, patients returned to the Center for prosthetic rehabilitation. After implant therapy, all patients underwent periodical, clinical, and prosthetic examinations every 6 months. Prosthetic restorations involved 109 fixed reconstructions in function. Few prosthetic complications were reported (6.55%). Twenty implants were rehabilitated with cemented prostheses; from those, 1 crown suffered a loss in retention/decementation. Of the 148 implants rehabilitated with screwed-retained prostheses, 6.76% suffered prosthetic screw loosening. The cumulative implant survival rate was 98.2%. When peri-implant tissue health was evaluated, the keratinized mucosa band appeared related to peri-implant tissue stability. Thus, Morse taper implants represented a successful procedure for implant rehabilitation, with a high cumulative implant survival rate, low prevalence of biological and prosthetic complications, and good stability of peri-implant tissues over the assessed period.
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Affiliation(s)
- Lara Steiner Back
- Department of Dentistry, Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Joseane Silva
- Department of Dentistry, Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Carolina Schäffer Morsch
- Department of Dentistry, Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Margherita Tumedei
- Department of Biomedical, Surgical and Dental Sciences, State University of Milano, Milano, Italy and IRCCS, Fondazione Ca' Granda, IRCCS Ospedale Maggiore Policlinico, Milano, Italy
| | - Ricardo de Souza Magini
- Department of Dentistry, Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
| | - Adriano Piatelli
- School of Dentistry, Saint Camillus International University for Health Sciences (Unicamillus), Rome, Italy and Facultad de Medicina, Universidad Catolica San Antonio de Murcia, Murcia Spain
| | - Cesar Augusto Magalhães Benfatti
- Department of Dentistry, Center for Education and Research on Dental Implants (CEPID), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil
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Chandran K R S, Goyal M, Mittal N, George JS. Accuracy of freehand versus guided immediate implant placement: A randomized controlled trial. J Dent 2023; 136:104620. [PMID: 37454788 DOI: 10.1016/j.jdent.2023.104620] [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: 05/24/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023] Open
Abstract
PURPOSE This randomized controlled trial (RCT) aimed to compare the accuracy of immediate implant placement with freehand and static guided surgery. METHODS An RCT was conducted on 61 subjects who received a total of 80 dental implants. The enrolled patients were randomly allocated to two groups: freehand surgery (control group, n = 40 implants) and static guided surgery with R2Gate® (Megagen, Gyeongbuk, South Korea, test group, n = 40 implants). Crestal and apical deviations in both mesiodistal and buccolingual dimensions, as well as depth and angular deviations, were calculated by comparing the three-dimensional (3D) position of the implant in the planning software with the final implant position, revealed by an intraoral scan of the fixture after placement. The Mann-Whitney test was used for comparative assessment. RESULTS In the freehand group (control), crestal deviations of 1.13 ± 0.89 mm and 1.00 ± 0.76 mm were found in the mesiodistal and buccolingual directions, respectively, versus 0.34 ± 0.26 mm (p<0.001) and 0.37 ± 0.24 mm (p = 0.03) in the static guided surgery group (test). Apical deviation was also higher in the freehand group (control) than in the static guided surgery group (test) in the mesiodistal (4.04 ± 1.90 mm vs. 0.97 ± 0.55 mm, p = 0.04) and buccolingual directions (3.46 ± 1.82 mm vs. 0.94 ± 0.67 mm, p = 0.02). Freehand surgery had greater angular deviation (6.09° ± 3.23) compared to guided surgery (0.83° ± 0.53, p = 0.02). However, depth deviation was similar in the freehand surgery group (2.24 ± 1.58 mm) and static guided surgery group (0.66 ± 0.43, p = 0.09). CONCLUSIONS Immediate implant placement with static guided surgery demonstrated better accuracy than freehand surgery. STATEMENT OF CLINICAL RELEVANCE Guided implant surgery showed fewer deviations compared to freehand surgery in fresh extraction sockets; therefore, the use of static guides should be given preference over the freehand modality.
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Affiliation(s)
- Segin Chandran K R
- Santosh University, No.1, Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India.
| | - Manoj Goyal
- Santosh University, No.1, Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India
| | - Neeti Mittal
- Santosh University, No.1, Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India
| | - Jensy Sara George
- The Tamil Nadu Dr MGR Medical University 69, Anna Salai, Rd, Guindy, Chennai, Tamil Nadu 600032, India
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Parvini P, Trimpou G, Begic A, Cafferata EA, Petsos H, Müller KM, Schwarz F, Eickholz P, Obreja K. Esthetic and clinical outcomes after immediate placement and restoration: Comparison of two implant systems in the anterior maxilla-A cross-sectional study. Clin Implant Dent Relat Res 2022; 25:252-260. [PMID: 36575853 DOI: 10.1111/cid.13158] [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: 03/07/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 12/29/2022]
Abstract
AIM To assess the esthetic and clinical performance of a novel self-tapping implant system for single-tooth restorations in the esthetic zone after immediate placement and provisionalization. MATERIALS AND METHODS This cross-sectional study included 52 patients contributing a total of 52 immediately placed and restored implants with ≥12 months after functional loading, comparing two different implant systems: Straumann® BLX (Institut Straumann AG, Basel, Switzerland; 25 patients) and Ankylos® (Dentsply Sirona, Hanau, Germany; 27 patients). As the primary outcome measure, peri-implant tissue esthetics were assessed by means of pink esthetics score (PES) rated by three independent clinicians. Moreover, as secondary outcome measures, the peri-implant tissue health was assessed by means of bleeding on probing, probing depth, and suppuration. Apart from that, the modified plaque index, keratinized mucosa width, and the presence of mucosal recessions were also assessed. When clinical signs suggested the possibility of peri-implantitis, radiographs were indicated to assess progressive bone loss. RESULTS The mean PES ratings were 12.10 ± 1.10 for Ankylos versus 11.2 ± 1.86 for BLX, both achieving good esthetic results without significant differences (p = 0.143). There were no differences among most clinical parameters (plaque, bleeding on probing, probing depth, peri-implant mucosal recession), although peri-implant mucositis was present in one-third of the cases. The inter-rater agreement on esthetics was not significant (p < 0.250). CONCLUSION Within the limitations of the present study, it was concluded that the use of either BLX or Ankylos implant systems was associated to comparable peri-implant health and good pink esthetic outcomes during immediate implantation and restoration protocols, for at least 12 months.
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Affiliation(s)
- Puria Parvini
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - Georgia Trimpou
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - Amira Begic
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - Emilio A Cafferata
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany.,Department of Periodontology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Hari Petsos
- Department of Periodontology, Goethe University Frankfurt, Carolinum, Frankfurt, Germany
| | | | - Frank Schwarz
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - Peter Eickholz
- Department of Periodontology, Goethe University Frankfurt, Carolinum, Frankfurt, Germany
| | - Karina Obreja
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
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Trimpou G, Schwarz F, Begić A, Hess P, Lermen J, Keim N, Obreja K, Parvini P. Clinical performance of immediately placed and restored progressive-type implants in the esthetic zone: a prospective observational study. Int J Implant Dent 2022; 8:57. [PMID: 36414824 PMCID: PMC9681970 DOI: 10.1186/s40729-022-00462-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/12/2022] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To assess implant success and survival of immediately placed and restored progressive-type implants in the esthetic zone. MATERIAL AND METHODS A total of n = 21 patients (21 implants) had received an immediate placement of a tapered, two-part implant with a progressive thread design (PL) for a single tooth replacement in the anterior maxilla. An immediate 'non full-functional loaded' restoration was provided upon adequate primary stability on a final patient-specific abutment (one abutment-one time concept). The final restoration was provided at 12 weeks (baseline). Implant survival and success (e.g. bleeding on probing-BOP, probing pocket depth-PD, mucosal recession-MR, pink esthetic score-PES) as well as patient- reported outcomes (PROM`S) were recorded at 6 and 12 months. RESULTS An adequate primary implant stability (i.e. insertion torque > 35 Ncm) was obtained at all but one sites. At 12 months, implant survival (n = 20 patients) amounted to 100%. Non-significant changes to baseline were noted for mean BOP (2.5 ± 28.2%), PD (- 0.26 ± 0.73 mm), and MR (0.0 ± 0.4 mm) values. PES values amounted to 12.9 ± 1.14 and 13.2 ± 0.84 at 6 and 12 months. Technical and mechanical complications were not observed. Patients expressed an overall high satisfaction. CONCLUSIONS The presented immediacy protocol was associated with high survival and success rates on the short-term.
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Affiliation(s)
- G. Trimpou
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - F. Schwarz
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - A. Begić
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - P. Hess
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - J. Lermen
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - N. Keim
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - K. Obreja
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - P. Parvini
- grid.7839.50000 0004 1936 9721Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
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Li Y, Yu Y, Feng Y, Liu W. Predictable digital restorative workflow for minimally invasive esthetic rehabilitation utilizing a virtual patient model with global diagnosis principle. J ESTHET RESTOR DENT 2022; 34:769-775. [PMID: 35213088 DOI: 10.1111/jerd.12894] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/11/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The conventional anterior esthetic treatment protocol is limited as it's time consuming and unreliable. A predictable digital workflow for minimally invasive anterior esthetic tooth rehabilitation with global diagnosis principle has been introduced in this report. CLINICAL CONSIDERATIONS A 23-year-old female patient with the chief complaint of unsatisfied shape and color of her anterior teeth visited our hospital for restorative consultation. Three-dimensional Digital Smile Design was used to integrate into a virtual patient model to provide rehabilitative esthetic planning with global diagnostic principle. 3D printer was used for communication and guidance preparation. Digital impression and computer-aided design/computer-aided manufacturing technologies were adopted for making the morphology of designed restorations that can precisely transfer to definitive prostheses. The esthetics, functional occlusion, and gingival tissues remained stable for over a follow-up period of 3 years. No signs of fractures within the restorations were observed. CONCLUSIONS Minimally invasive anterior esthetic tooth rehabilitation can be readily achieved using a predictable digital workflow with global diagnosis principle. CLINICAL SIGNIFICANCE This digital approach might promote diagnosis, enhance communication, reduce processing time, and increase the predictability of final outcomes with high comfort and esthetic effect.
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Affiliation(s)
- Yiyuan Li
- Department of Prosthodontics, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, China
| | - Yiqiang Yu
- Department of Prosthodontics, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, China
| | - Yue Feng
- Department of Prosthodontics, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, China
| | - Weicai Liu
- Department of Prosthodontics, School & Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, China
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Thanissorn C, Guo J, Jing Ying Chan D, Koyi B, Kujan O, Khzam N, Miranda LA. Success Rates and Complications Associated with Single Immediate Implants: A Systematic Review. Dent J (Basel) 2022; 10:dj10020031. [PMID: 35200256 PMCID: PMC8870981 DOI: 10.3390/dj10020031] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 02/05/2023] Open
Abstract
This study examined the success rates of single immediate implants and their associated biological, hardware and aesthetic complications. Using a developed search strategy, randomized controlled trials (RCTs) on single-unit immediate implants with at least six human participants, a minimum follow-up time of 12 months and published between January 1999 and January 2021 were identified. Data was extracted independently using pre-designed data extraction forms. Information on success rates and associated biological, hardware and aesthetic complications were obtained and assessed. Out of 191 potentially eligible studies, 26 RCTs assessing 1270 patients with a total of 1326 single implants were included and further evaluated. In this review, success rate was reported to be 96.7–100% over a total of 9 studies. However, there was a lack of consensus on a universal success criterion between authors emphasizing the need for agreement. The average follow up was 29 months and most reported complications were aesthetic (63 cases, 4.7%), whilst there were relatively fewer biological, (20 cases, 1.5%), and hardware complications (24 cases, 1.8%). Success rate is an uncommon clinical outcome with 9 out of 26 of the selected RCTs reporting it. In these studies, single immediate implants showed a high success rate with low numbers of biological and hardware complications, and high patient satisfaction with aesthetics were reported in the short-term follow-up of one year.
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Affiliation(s)
- Charn Thanissorn
- UWA Dental School, The University of Western Australia, 17 Monash Ave, Nedlands, WA 6009, Australia; (C.T.); (J.G.); (D.J.Y.C.); (O.K.); (N.K.)
| | - Jason Guo
- UWA Dental School, The University of Western Australia, 17 Monash Ave, Nedlands, WA 6009, Australia; (C.T.); (J.G.); (D.J.Y.C.); (O.K.); (N.K.)
| | - Dianna Jing Ying Chan
- UWA Dental School, The University of Western Australia, 17 Monash Ave, Nedlands, WA 6009, Australia; (C.T.); (J.G.); (D.J.Y.C.); (O.K.); (N.K.)
| | - Bryar Koyi
- Independent Researcher, London W11 3LF, UK;
| | - Omar Kujan
- UWA Dental School, The University of Western Australia, 17 Monash Ave, Nedlands, WA 6009, Australia; (C.T.); (J.G.); (D.J.Y.C.); (O.K.); (N.K.)
| | - Nabil Khzam
- UWA Dental School, The University of Western Australia, 17 Monash Ave, Nedlands, WA 6009, Australia; (C.T.); (J.G.); (D.J.Y.C.); (O.K.); (N.K.)
- Independent Researcher, Como, WA 6152, Australia
| | - Leticia Algarves Miranda
- UWA Dental School, The University of Western Australia, 17 Monash Ave, Nedlands, WA 6009, Australia; (C.T.); (J.G.); (D.J.Y.C.); (O.K.); (N.K.)
- Correspondence: ; Tel.: +61-8-6457-7894
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Ibrahim A, Chrcanovic BR. Dental Implants Inserted in Fresh Extraction Sockets versus Healed Sites: A Systematic Review and Meta-Analysis. MATERIALS 2021; 14:ma14247903. [PMID: 34947493 PMCID: PMC8708389 DOI: 10.3390/ma14247903] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 12/24/2022]
Abstract
The present review aimed to evaluate the difference of dental implant failure rates and marginal bone loss (MBL) between implants inserted in fresh extraction sockets or healed sites. Electronic search was undertaken in three databases, plus manual search of journals, including studies randomized or not. Meta-analyses were performed besides meta-regressions, in order to verify how the odds ratio (OR) and MBL were associated with follow-up time. The review included 163 publications. Altogether, there were 17,278 and 38,738 implants placed in fresh extraction sockets and healed sites, respectively. Pairwise meta-analyses showed that implants in sockets had a higher failure risk in comparison to healed sites: OR 1.349, all studies included; OR 2.070, only prospective non-RCTs; OR 2.487, only RCTs (all p < 0.001). The difference in implant failure between the groups was statistically significant in the maxilla (OR 1.616, p = 0.029), but not in the mandible (OR 2.192, p = 0.075). The MBL mean difference (MD) between the groups was −0.053 mm (p = 0.089). There was an estimated decrease of 0.003 in OR (p = 0.284) and an increase of 0.006 mm (p = 0.036) in the MBL MD between groups for every additional month of follow-up. In conclusion, implants placed in fresh extraction sockets present higher risk of failure than implants placed in healed sites.
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Affiliation(s)
- Adam Ibrahim
- Faculty of Odontology, Malmö University, 214 21 Malmö, Sweden;
| | - Bruno Ramos Chrcanovic
- Department of Prosthodontics, Faculty of Odontology, Malmö University, 214 21 Malmö, Sweden
- Correspondence:
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Accuracy of trial restorations from virtual planning: A comparison of two fabrication techniques. J Prosthet Dent 2020; 127:425-429. [PMID: 33317829 DOI: 10.1016/j.prosdent.2020.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 08/16/2020] [Accepted: 08/17/2020] [Indexed: 11/22/2022]
Abstract
STATEMENT OF PROBLEM Different technologies have been used to fabricate trial restorations. However, studies investigating the accuracy of trial restorations fabricated with different techniques in comparison with the initial 3-dimensional virtual design are lacking. PURPOSE The purpose of this clinical study was to evaluate completely digital workflows for managing the esthetic outcome through the production of trial restorations with 2 different technologies: stereolithography apparatus (SLA 3D) and computer-aided design and computer-aided manufacturing (CAD-CAM). The aim was to determine which of them provided trial restorations more similar to those of the 3D virtual design. MATERIAL AND METHODS Thirty participants who did not meet ideal esthetic proportions for the anterior maxillary teeth were enrolled. For each, 2 intraoral and extraoral frontal photographs and intraoral digital scans were made. The digital images were processed by using the Digital Smile System (DSS) software program to have a smile preview after the treatment. Virtual designs were matched with the surface tessellation language (STL) files from the intraoral scans and edited by exocad DentalCAD to create custom trial restorations using SLA 3D and CAD-CAM technologies. Two independent examiners measured the virtual restorations by using virtual calipers in the software program and then the trial restorations by using digital calipers. The measurements were carried out from the incisal edge to the gingival margin, mesial-distal widths of the central incisors, and the distance from the distal margins of maxillary right and left canines. The trial restorations were evaluated intraorally for fit. The participants approved the definitive treatment outcome after the evaluation. The normality of data was verified with the Shapiro-Wilk test, and the Friedman test for matched groups with the Bonferroni and Dunn tests for multiple comparisons were used (α=.05). RESULTS Comparing the 3D designs with the printed trial restorations, a significant increase was only found in the mesial-distal width of central incisors (P<.05), while the milled trial restorations showed a significant increase (P<.05) of all measurements except for the maxillary right and left canines. Comparing printed trial restorations with the milled ones, the only significant difference was found in height measures of maxillary right central incisor, with the milled trial restorations exhibiting higher values than the printed ones (P<.05). The printed trial restorations showed good clinical fit, and the milled restorations had poor clinical adaptation. CONCLUSIONS The accuracy of printed trial restorations was higher than that of milled trial restorations, except for the canine to canine width of maxillary anterior teeth. However, this difference did not compromise the fit of the printed trial restorations. The milled trial restorations had increased dimensions in comparison with the measurements made in 3D designs, and consequently, their clinical fit was compromised. SLA 3D- printing technology provided the best fit.
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H H, G W, E H. The clinical significance of implant stability quotient (ISQ) measurements: A literature review. J Oral Biol Craniofac Res 2020; 10:629-638. [PMID: 32983857 DOI: 10.1016/j.jobcr.2020.07.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/22/2020] [Accepted: 07/13/2020] [Indexed: 10/23/2022] Open
Abstract
Implant stability quotients (ISQ values) are obtained in dental clinical practice on a non-invasive basis by resonance frequency measurement rapidly after surgical placement of implants. The ISQ-values are used as indicator for mechanical implant stability, and are believed to have predictive power for clinical outcome. It is the aim of this review to provide a synopsis of all factors described in the literature that influence ISQ measurements by performing an exhaustive literature review; moreover, this review aims at elucidating the key factors relevant for a rapid clinical predictive assessment. We searched systematically and exhaustively all major databases for publications relating to ISQ measurement methodology and for ISQ-influencing factor analyses. The reports identified were ordered in experimental (preclinical) studies and in clinical publications. We were able to identify 13 basic factors influencing ISQ-measurements. Among these, local bone quality, playing a key role in such measurements, was subdivided in four specific subfactors; thus a total of 17 individual factors was identified and reported to influence ISQ-measurements. A comprehensive list of these factors is provided in Table-form. A critical analysis points out that only 6 of these factors are of a sound predictive power useful for a rapid clinical assessment; and only two of these factors appear to have a well-documented scientific basis.
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Affiliation(s)
- Huang H
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Gustav Mahlerlaan, 3004, 1081LA Amsterdam, Nord-Holland, the Netherlands.,Department of Osteoporosis, Inselspital Bern University Hospital, Freiburgstrasse 3, CH-3010, Bern, Switzerland
| | - Wu G
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Gustav Mahlerlaan, 3004, 1081LA Amsterdam, Nord-Holland, the Netherlands
| | - Hunziker E
- Department of Osteoporosis, Inselspital Bern University Hospital, Freiburgstrasse 3, CH-3010, Bern, Switzerland.,Departments of Osteoporosis and Orthopaedic Surgery, Inselspital Bern University Hospital, Freiburgstrasse 3, CH-3010, Bern, Switzerland
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Cosyn J, De Lat L, Seyssens L, Doornewaard R, Deschepper E, Vervaeke S. The effectiveness of immediate implant placement for single tooth replacement compared to delayed implant placement: A systematic review and meta-analysis. J Clin Periodontol 2019; 46 Suppl 21:224-241. [PMID: 30624808 DOI: 10.1111/jcpe.13054] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/15/2018] [Accepted: 10/19/2018] [Indexed: 11/28/2022]
Abstract
AIM To compare immediate implant placement (IIP) to delayed single implant placement (DIP, ≥3 months post-extraction) in terms of implant survival (primary outcome), surgical, clinical, aesthetic, radiographic and patient-reported outcomes (secondary outcomes). MATERIALS AND METHODS Two reviewers independently performed an electronic search in PubMed, Web of Science, EMBASE and Cochrane and a hand search to identify eligible studies up to May 2018. Only randomized controlled trials (RCTs) and non-randomized controlled studies (NRSs) comparing IIP to DIP with at least 1 year of follow-up were selected for a qualitative analysis and meta-analysis. RESULTS The search identified 3 RCTs and 5 NRSs out of 2,589 titles providing data on 473 single implants (IIP: 233, DIP: 240) that had been in function between 12 and 96 months. One RCT showed unclear risk of bias, whereas all other studies demonstrated high risk. Meta-analysis showed significantly lower implant survival for IIP (94.9%) as compared to DIP (98.9%) (RR 0.96, 95% CI [0.93; 0.99], p = 0.02). All were early implant failures. A subgroup meta-analysis demonstrated a trend towards lower implant survival for IIP when postoperative antibiotics had not been administered (RR: 0.93, 95% CI [0.86; 1.00], p = 0.07). This was not observed among studies including the administration of postoperative antibiotics (RR: 0.98, 95% CI [0.94; 1.02], p = 0.35). Meta-analyses showed similar probing depth (WMD 0.43 mm, 95% CI [-0.47; 1.33], p = 0.35) and aesthetic outcomes as assessed by the pink aesthetic score (standardized WMD -0.03, 95% CI [-0.46; 0.39], p = 0.88) for IIP and DIP. Data on marginal bone loss were conflicting and highly biased. Soft tissue recession was underreported and available data were highly biased. Patient-reported outcomes were underreported, yet both IIP and DIP seemed well tolerated. CONCLUSION Immediate implant placement demonstrated higher risk for early implant loss than DIP. There is a need for RCTs comparing IIP to DIP with CBCT analyses at different time points and data on midfacial recession with the preoperative status as baseline. In these studies, the need for hard and soft tissue grafting should also be evaluated.
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Affiliation(s)
- Jan Cosyn
- Faculty of Medicine and Health Sciences, Dental School, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium.,Oral Health Research Group (ORHE), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Liesa De Lat
- Faculty of Medicine and Health Sciences, Dental School, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium
| | - Lorenz Seyssens
- Faculty of Medicine and Health Sciences, Dental School, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium
| | - Ron Doornewaard
- Faculty of Medicine and Health Sciences, Dental School, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium
| | - Ellen Deschepper
- Faculty of Medicine and Health Sciences, Department of Biomedical statistics, Ghent University, Ghent, Belgium
| | - Stijn Vervaeke
- Faculty of Medicine and Health Sciences, Dental School, Department of Periodontology and Oral Implantology, Ghent University, Ghent, Belgium
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An 11-Year Retrospective Research Study of the Predictive Factors of Peri-Implantitis and Implant Failure: Analytic-Multicentric Study of 1279 Implants in Peru. Int J Dent 2019; 2019:3527872. [PMID: 31341478 PMCID: PMC6612967 DOI: 10.1155/2019/3527872] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/30/2019] [Accepted: 05/30/2019] [Indexed: 11/23/2022] Open
Abstract
Aim To analyze the risk factors by logistic regression and perform the analysis of the survival rate of osseointegrated dental implants placed in public and private institutions. Methods An analytic-multicentric study was carried out, where 1279 dental implants that were placed by specialists from January 2006 to October 2017 in public and private institutions (UPCH-SI, HCFAP, CMNAVAL, UPCH-SM, and UPSJB) were evaluated. The variables sex (X1), location (X2), hypertension (X3), antibiotic prophylaxis (X4), diabetes (X5), osteoporosis (X6), bisphosphonates (X7), history of periodontitis (X8), hypercholesterolemia (X9), bone quality (X10), bone quantity (X11), design (X12), smoker (X13), connection (X14), edentulism type (X15), staging (X16), 3D guided surgery (X17), load (X18), bone graft (X19), peri-implantitis (X20), mucositis (X21), and GBR (X22) were collected and analyzed by the Kaplan–Meier survival analysis. The logit analysis was performed among all the variables to choose the best statistical model that explains the true risk factors. The analysis was performed by multivariate logistic regression and the Kaplan–Meier test, at a level of statistical significance of p < 0.05. Results It was found that the failure rate of the 1279 implants evaluated was 17.98% corresponding to only 23 implants lost as they have good longevity over time. When establishing the best multivariate logistic regression model, it was found that the variables that remained stable in relation to their statistically significant value and more stable confidence intervals were age, osteoporosis, bisphosphonates, history of periodontitis, bone quality, bone graft, connection, number of implants, GBR (guided bone regeneration), and follow-up. Conclusions Dental implants placed by specialists in public and private institutions had a failure rate similar to that in studies previously published in other countries.
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da Silva Marques DN, Marques Pinto RJ, Alves RVAA, Baratieri LN, da Mata ADSP, Caramês JMM. Soft tissue replication in single unit implant impressions-A three dimensional clinical study. J ESTHET RESTOR DENT 2019; 31:359-368. [PMID: 30985991 DOI: 10.1111/jerd.12481] [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: 11/29/2018] [Revised: 02/26/2019] [Accepted: 03/25/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Comparison of soft tissue replication between conventional and digital impressions for definitive single unit implant rehabilitation in the esthetic zone. MATERIALS AND METHODS Six patients were recruited according to inclusion criteria for this cross-over pilot study and submitted to a conventional silicone implant impression with customized coping and a digital impression with an intraoral scanner. Stereolithography files obtained from the same patient were superimposed with appropriate software and trueness evaluated between methods at predetermined locations (56 in hard and soft tissues and 18 in the emergence profile, per patient). Results were presented as mean root mean square (RMS) ± 95% confidence interval and effect size calculated with Hedges' g ± 95%. Mann-Whitney and Kruskal-Wallis were performed when appropriate and α was set at .05. RESULTS Trueness between methods equated to 51.08[45.68;56.47] μm and 60.46[52.29;68.62] μm in hard and soft tissues, respectively. Soft tissue replication by intraoral scanner acquisition corresponded to a statistically significant RMS of 243.89[209.15;278.63] μm equating to a Hedges' g of 1.52[1.22;1.82] which corresponded to a large effect size. CONCLUSIONS The proposed method could be considered for soft tissues assessment and the results suggest that intraoral impression techniques produce statistically significant changes in peri-implant soft tissue replication, although below the clinically detectable threshold. CLINICAL SIGNIFICANCE The proposed technique allows for the 3D determination of peri-implant tissues changes in digital models with higher sensitivity than visual techniques, thus presenting itself as a promising alternative in clinical studies and that the use of an intraoral scanner obtained significant differences in the soft tissue emergence profile replication when compared with the gold standard.
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Affiliation(s)
- Duarte Nuno da Silva Marques
- Department of Oral Rehabilitation, Implantology Institute, Lisbon, Portugal.,Oral Biology Research Group, Faculdade de Medicina Dentaria, Universidade de Lisboa, Lisbon, Portugal.,LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentaria, Universidade de Lisboa, Lisbon, Portugal
| | | | | | - Luiz Narciso Baratieri
- Operative Dentistry Department, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - António Duarte Sola Pereira da Mata
- Oral Biology Research Group, Faculdade de Medicina Dentaria, Universidade de Lisboa, Lisbon, Portugal.,LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentaria, Universidade de Lisboa, Lisbon, Portugal
| | - João Manuel Mendez Caramês
- LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentaria, Universidade de Lisboa, Lisbon, Portugal.,Oral Surgery and Implant Dentistry Department, Faculdade de Medicina Dentaria, Universidade de Lisboa, Lisbon, Portugal.,Department of Oral Surgery and Implant Dentistry, Implantology Institute, Lisbon, Portugal
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13
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Influence of different implant-abutment connection designs on the mechanical and biological behavior of single-tooth implants in the maxillary esthetic zone: A systematic review. J Prosthet Dent 2019; 121:398-403.e3. [DOI: 10.1016/j.prosdent.2018.05.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/02/2018] [Accepted: 05/03/2018] [Indexed: 01/31/2023]
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Prosthetic Complications Affecting Single-Tooth Morse-Taper Connection Implants. J Craniofac Surg 2019; 29:2255-2262. [PMID: 29561486 DOI: 10.1097/scs.0000000000004495] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
PURPOSE To evaluate the long-term cumulative implant survival rate (CISR%) and cumulative implant-crown success rate (CICSR%) of single-tooth Morse-taper connection implants, with particular attention to documenting the incidence of prosthetic complications. METHODS The customized records of all patients who had been treated with single-tooth Morse-taper connection implants in 2 dental centers during the period between January 2002 and December 2012 were revisited. These records included patient-related (gender, age at surgery, smoking, bruxism), implant-related (date of insertion, site/location, and length/diameter of the implant, previous/concomitant bone regeneration), and restoration-related (date of delivery of the provisional and final crown) information. In addition, these records contained information about any implant failure and biologic and/or prosthetic complication that occurred during the follow-up period as well as the radiographic documentation. The follow-up period comprised between 5 and 15 years. The main outcomes were CISR% and CICSR%, with the latter being defined as the condition in which no complication had affected the surviving implant-supported crown during the entire follow-up. Life-table analysis was used for the analysis of CISR% and CICSR%. Peri-implant marginal bone resorption (PIMBR) at 5, 10, and 15 years was a secondary outcome of this study. RESULTS In total, 578 patients who had received 612 implants were included in this study. The overall CISR% at 15 years was 94.8% (94.2% maxilla, 95.3% mandible). Among the surviving crowns, the overall CICSR% at 15 years was 94.5% (93.1% and 94.9% for anterior and posterior crowns, respectively), and the incidence of prosthetic complications was low (1.5%). The PIMBL amounted to 0.38 ± 0.29 mm, 0.49 ± 0.35 mm, and 0.94 ± 0.58 mm at the 5-, 10-, and 15-year follow-ups, respectively. CONCLUSION Morse-taper connection implants represent a reliable treatment procedure for the restoration of single-tooth gaps in the long term, with high CISR% (94.8%) at 15 years, a very low incidence of complications, and a high CICSR% (94.5%).
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Abstract
OBJECTIVE In the anterior regions, the resorption of the buccal bone after tooth extraction leads to a contraction of the overlying soft tissues, resulting in an esthetic problem, particularly with immediate implant placement. In the socket shield technique, the buccal root section of the tooth is maintained, to preserve the buccal bone for immediate implant placement. The aim of this prospective study was to investigate the survival, stability, and complication rates of implants placed using a "modified" socket shield technique. METHODS Over a 2-year period, all patients referred to a dental clinic for treatment with oral implants were considered for inclusion in this study. Inclusion criteria were healthy adult patients who presented nonrestorable single teeth with intact buccal periodontal tissues in the anterior regions of both jaws. Exclusion criteria were teeth with present/past periodontal disease, vertical root fractures on the buccal aspect, horizontal fractures below bone level, and external/internal resorptions. The buccal portion of the root was retained to prevent the resorption of the buccal bone; the shield was 1.5 mm thick with the most coronal portion at the bone crest level. All patients then underwent immediate implants. In the patient with a gap between the implant and shield, no graft material was placed. All implants were immediately restored with single crowns and followed for 1 year. The main outcomes were implant survival, stability, and complications. RESULTS Thirty patients (15 males, 15 females; mean age was 48.2 ± 15.0 years) were enrolled in the study and installed with 40 immediate implants. After 1 year, all implants were functioning, for a survival rate of 100%; excellent implant stability was reported (mean implant stability quotient at placement: 72.9 ± 5.9; after 1 year: 74.6 ± 2.7). No biologic complications were reported, and the incidence of prosthetic complications was low (2.5%). CONCLUSIONS The "modified" socket shield technique seems to be a successful procedure when combined with immediate implant placement, because the root fragment does not interfere with osseointegration and may be beneficial for the esthetics, protecting the buccal bone from resorption.
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Gallucci GO, Hamilton A, Zhou W, Buser D, Chen S. Implant placement and loading protocols in partially edentulous patients: A systematic review. Clin Oral Implants Res 2018; 29 Suppl 16:106-134. [PMID: 30328194 DOI: 10.1111/clr.13276] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To systematically review the evidence for the clinical outcome of fixed implant prostheses treated with different combinations of implant placement and loading protocols in partially edentulous patients. MATERIALS AND METHODS An electronic search was performed in Medline, Embase, and Central to identify studies investigating the outcome of implants subjected to immediate placement + immediate restoration/loading (Type 1A), immediate placement + early loading (Type 1B), immediate placement + conventional loading (Type 1C), early placement + immediate restoration/loading (Type 2-3A), early placement + early loading (Type 2-3B), early placement + conventional loading (Type 2-3C), late placement + immediate restoration/loading (Type 4A), late placement + early loading (Type 4B), late placement + conventional loading (Type 4C) with implant-supported fixed dental prostheses (IFDPs) in partially edentulous patients. Only human studies with at least 10 cases and a minimum follow-up time of 12 months, reporting on solid-screw-type implants with rough surfaces and an intra-osseous diameter between 3 and 6 mm, were included. A cumulative survival rate for each type of the implant placement and loading protocols was weighted by the duration of follow-up and number of implants. RESULTS The search provided 5,248 titles from which 2,362 abstracts and 449 full-text articles were screened. A total of 69 publications that comprised 23 comparative studies (15 randomized controlled trials, 7 controlled clinical trials) and 47 noncomparative studies (34 prospective cohort studies, 13 retrospective cohort studies) were included for analysis. Considerable heterogeneity in study design was found, and therefore, a meta-analysis of controlled studies was not possible. The weighted cumulative survival rate of each type of placement and loading protocol was 98.4% (Type 1A), 98.2% (Type 1B), 96.0% (Type 1C), 100% (Type 2-3B), 96.3% (Type 2-3C), 97.9% (Type 4A), 98.3% (Type 4B), and 97.7% (Type 4C). Type 1C, Type 2-3C, Type 4B, and Type 4C were scientifically and clinically validated (SCV). Type 1A, Type 1B, and Type 4A were clinically documented (CD), and Type 2-3A and Type 2-3B were clinically insufficiently documented (CID). CONCLUSIONS Evaluating outcomes in oral implantology by combining the placement and loading protocols are paramount. The selected loading protocol appears to influence the outcome of immediate implant placement.
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Affiliation(s)
- German O Gallucci
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Adam Hamilton
- Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Wenjie Zhou
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts
- Second Dental Clinic, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Daniel Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Stephen Chen
- Melbourne Dental School, The University of Melbourne, Melbourne, Vic., Australia
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Calvo-Guirado JL, Benítez-García JA, Maté Sánchez de Val JE, Pérez-Albacete Martínez C, Gehrke SA, Delgado-Ruiz R, Moses O. Socket-shield technique: the influence of the length of the remaining buccal segment of healthy tooth structure on peri-implant bone and socket preservation. A study in dogs. Ann Anat 2018; 221:84-92. [PMID: 30244173 DOI: 10.1016/j.aanat.2018.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 09/08/2018] [Accepted: 09/11/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the influence of the location and length of root pieces on buccal peri-implant bone width and socket preservation in socket shield technique. MATERIAL AND METHODS Forty-eight dental implants (24 narrow and 24 regular platform internal hex implants) were placed in six dogs. The clinical crowns of teeth P2, P3, P4 and M1 were detached horizontally and removed from the underlying roots. Then the mesial root of each tooth was extracted and the distal root was degraded using a high-speed hand-piece with round bur, creating a concave shell of dentin cementum and periodontal ligament (PDL) connected to the buccal aspect of the socket. Remaining root fragments of different lengths were created: coronal (1/3); middle and coronal (2/3); full length (3/3). These were positioned all around the bone crest. Implants were placed at the center of the root sockets, 1-3mm deeper than the original root apex. RFA and histological evaluations were made at 4 and 12 weeks. Data underwent statistical analysis (p<0.05). RESULTS All 48 implants osseointegrated satisfactorily. On both buccal and lingual sides, the coronal (1/3) radicular fragment was attached to the buccal bone plate by physiologic periodontal ligament with less crestal bone resorption compared with middle (2/3) and whole root (3/3) groups for narrow and standard implants. CONCLUSIONS Within the limitations of this study, the results demonstrate that a small piece of root in the coronal part of the alveolus can protect the buccal, mesial and distal bone crest following the immediate placement of NeO narrow or NeO Standard Internal Hex implants. The thickness of peri-implant bone and the remaining root fragment together will provide a total thickness of >2mm. The technique would appear to be highly predictable, maintaining bone volume and reducing the risk of crestal bone resorption.
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Affiliation(s)
- José Luis Calvo-Guirado
- Full Professor of Oral and Implant Surgery, Director of International Dentistry Research Cathedra, Faculty of Oral Sciences, UCAM - Catholic University of Murcia, Murcia, Spain.
| | - Jose Antonio Benítez-García
- PhD Student of International Dentistry Research Cathedra, Faculty of Oral Sciences, UCAM - Catholic University of Murcia, Murcia, Spain
| | | | | | - Sergio Alexandre Gehrke
- Professor, Director of Biotecnos Research Center - Tecnología e Ciencia Ltda. Montevideo, Uruguay, Director of Biotechnology Cathedra, UCAM - Catholic University of Murcia, Murcia, Spain
| | - Rafael Delgado-Ruiz
- Associate Professor in Prosthodontic, School of Dental Medicine, Stony Brook University of New York, USA
| | - Ofer Moses
- Professor of Department of Periodontology and Dental Implantology, School of Dental Medicine, Tel Aviv University, Israel
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Pour NN, Ghaedi B, Sohrabi M. Soft-tissue esthetic outcome of single implants: Immediate placement in fresh extraction sockets versus conventional placement in healed sockets. J Indian Soc Periodontol 2018; 22:249-253. [PMID: 29962705 PMCID: PMC6009153 DOI: 10.4103/jisp.jisp_21_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Immediate implant placement has advantages such as requiring fewer surgical procedures and decreased treatment time; however, unpredictable soft- and hard-tissue outcome is a problem. This study aimed to compare the soft-tissue esthetic outcome of single implants placed in fresh extraction sockets versus those placed in healed sockets. Materials and Methods: This cross-sectional, retrospective study was performed on 42 patients who received single implants. Twenty-two patients with a mean age of 40.14 years received immediate implants while 18 patients with a mean age of 43.40 years were subjected to conventional (delayed) implant placement. The mean follow-up time was 14.42 ± 8.37 months and 18.25 ± 7.10 months in the immediate and conventional groups, respectively. Outcome assessments included clinical and radiographic examinations. The esthetic outcome was objectively rated using the pink esthetic score (PES). Results: All implants fulfilled the success criteria. The mean PES was 8.54 ± 1.26 and 8.10 ± 1.65 in the immediate and conventional groups, respectively. This difference was not statistically significant (P = 0.329). The two PES parameters, namely, the facial mucosa curvature and facial mucosa level had the highest percentage of complete score. Conclusions: Immediate and conventional single implant treatments yielded comparable esthetic outcomes.
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Affiliation(s)
- Nima Naddaf Pour
- Department of Periodontology, Dental School, Islamic Azad University, Tehran, Iran
| | - Baharak Ghaedi
- Periodontist, Private Practice, Tehran University of Medical Science, Tehran, Iran
| | - Mona Sohrabi
- Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Science, Tehran, Iran
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Arora H, Ivanovski S. Evaluation of the influence of implant placement timing on the esthetic outcomes of single tooth implant treatment in the anterior maxilla: A retrospective study. J ESTHET RESTOR DENT 2018; 30:338-345. [PMID: 29766644 DOI: 10.1111/jerd.12385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The purpose of this retrospective study was to investigate the influence of implant placement timing on the esthetic outcomes for single implants in the anterior maxilla. MATERIALS AND METHODS One hundred and ten patients (48 males; 62 females) who received a single-tooth implant after extraction either immediately (Type 1); after 4-8 weeks (Type 2); after 8-16 weeks (Type 3); or more than 16 weeks (Type 4) were evaluated in terms of esthetic outcomes after a mean post-placement interval of 26.3 months (range 12-116). Esthetic outcomes were measured using the Pink and White Esthetic Score (PES; WES). Stepwise regression analysis was performed to analyze the effect of timing of placement, as well as patient demographics and other clinical parameters on the esthetic outcomes. RESULTS No statistically significantly differences in PES were found between the various treatment modalities with Type 1 implants (n = 33) scoring 10.58 ± 1.65 (median: 11), followed by 10.36 ± 2.09 (median: 10.5), 9.68 ± 2.43 (median: 10), and 9.63 ± 2.21 (median: 10) for Type 2 (n = 14), Type 3 (n = 19), and Type 4 (n = 44), respectively. For immediate implants, a trend towards better esthetic outcomes was observed when implant placement was done flaplessly in cases with intact buccal bone (Type 1A, median PES 11) as compared to cases with partial/complete missing buccal plates where a flap was raised (Type 1B, median PES 10). Overall, the only parameter that influenced esthetic outcomes (as measured by PES) was gender, with females having significantly superior results. The median WES was 8 and 96% of the crowns were deemed esthetically acceptable, with crowns placed by specialist prosthodontists yielding higher scores than those placed by general practitioners. CONCLUSIONS Single tooth implants in the anterior maxilla showed satisfactory outcomes when measured with objective esthetic criteria. Timing of implant placement did not significantly influence the esthetic outcomes, although a trend towards better outcomes was seen with immediate implant placement as observed by higher median PES values. CLINICAL SIGNIFICANCE Single tooth implant placement in the anterior maxilla is a predictable treatment modality for achieving acceptable esthetic outcomes regardless of the timing of placement.
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Affiliation(s)
- Himanshu Arora
- School of Dentistry and Oral Health, MHIQ, Griffith University, Gold Coast, QLD, Australia
| | - Saso Ivanovski
- School of Dentistry, The University of Queensland, Brisbane, QLD, Australia
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Oh WS. Multiple Disconnections/Reconnections of Implant Abutment May Induce Recession of Peri-implant Mucosa. J Evid Based Dent Pract 2018; 18:91-93. [DOI: 10.1016/j.jebdp.2018.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Immediate Loading of Tapered Implants Placed in Postextraction Sockets and Healed Sites. J Craniofac Surg 2017; 27:1220-7. [PMID: 27391493 DOI: 10.1097/scs.0000000000002756] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE The aim of the present study was to compare the survival, stability, and complications of immediately loaded implants placed in postextraction sockets and healed sites. METHODS Over a 2-year period, all patients presenting with partial or complete edentulism of the maxilla and/or mandible (healed site group, at least 4 months of healing after tooth extraction) or in need of replacement of nonrecoverable failing teeth (postextraction group) were considered for inclusion in this study. Tapered implants featuring a nanostructured calcium-incorporated surface were placed and loaded immediately. The prosthetic restorations comprised single crowns, fixed partial dentures, and fixed full arches. Primary outcomes were implant survival, stability, and complications. Implant stability was assessed at placement and at each follow-up evaluation (1 week, 3 months, and 1 year after placement): implants with an insertion torque (IT) <45 N·cm and/or with an implant stability quotient (ISQ) <70 were considered failed for immediate loading. A statistical analysis was performed. RESULTS Thirty implants were placed in postextraction sockets of 17 patients, and 32 implants were placed in healed sites of 22 patients. There were no statistically significant differences in ISQ values between the 2 groups, at each assessment. In total, 60 implants (96.8%) had an IT ≥45 and an ISQ ≥70 at placement and at each follow-up control: all these implants were successfully loaded. Only 2 implants (1 in a postextraction socket and 1 in a healed site, 3.2%) could not achieve an IT ≥45 N·cm and/or an ISQ ≥70 at placement or over time: accordingly, these were considered failed for stability, as they could not be subjected to immediate loading. One of these 2 implants, in a healed site of a posterior maxilla, had to be removed, yielding an overall 1-year implant survival rate of 98.4%. No complications were reported. No significant differences were reported between the 2 groups with respect to implant failures and complications. CONCLUSION Immediately loaded implants placed in postextraction sockets and healed sites had similar high survival and stability, with no reported complications. Further long-term studies on larger samples of patients are needed to confirm these results.
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Immediate Loading of Single Implants in the Anterior Maxilla: A 1-Year Prospective Clinical Study on 34 Patients. Int J Dent 2017; 2017:8346496. [PMID: 28611844 PMCID: PMC5458381 DOI: 10.1155/2017/8346496] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 03/13/2017] [Indexed: 01/10/2023] Open
Abstract
Purpose To present the outcomes of immediately loaded single implants placed in the anterior maxilla. Methods Over a 2-year period, all patients referred to a private clinic were considered for enrolment in this study. Inclusion criteria were single-tooth placement in postextraction sockets or healed sites of the anterior maxilla. All implants were immediately loaded and followed for a period of 1 year after the placement of definitive crowns. The outcome measures were implant stability, survival, and success. Results 34 patients were selected and 43 tapered implants with a knife-edge thread design and a nanostructured, calcium-incorporated surface (Anyridge®, Megagen, Gyeongsang, Korea) were installed. Two implants were not sufficiently stable at placement (ISQ < 60) and were considered failed for immediate loading; 41 implants had an ISQ ≥ 60 at placement and were immediately loaded. One year after the placement of definitive crowns, no implant failures were reported, for a survival rate of 100%. No biological complications were found, but 2 implants had their prosthetic abutments loosened: the implant success rate was 95.2%. Conclusions In the present study on the immediate loading of single implants in the anterior maxilla, positive outcomes were reported, with high survival (100%) and success (95.2%) rates (the present study has been registered in the ISRCTN registry, a publicly available trial register recognized by WHO and ICMJE, with number ISRCTN12935478).
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Fixed Full Arches Supported by Tapered Implants with Knife-Edge Thread Design and Nanostructured, Calcium-Incorporated Surface: A Short-Term Prospective Clinical Study. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4170537. [PMID: 28246595 PMCID: PMC5303578 DOI: 10.1155/2017/4170537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/04/2017] [Indexed: 11/18/2022]
Abstract
Purpose. To evaluate implant survival, peri-implant bone loss, and complications affecting fixed full-arch (FFA) restorations supported by implants with a knife-edge thread design and nanostructured, calcium-incorporated surface. Methods. Between January 2013 and December 2015, all patients referred for implant-supported FFA restorations were considered for enrollment in this study. All patients received implants with a knife-edge thread design and nanostructured calcium-incorporated surface (Anyridge®, Megagen, South Korea) were restored with FFA restorations and enrolled in a recall program. The final outcomes were implant survival, peri-implant bone loss, biologic/prosthetic complications, and “complication-free” survival of restorations. Results. Twenty-four patients were selected. Overall, 215 implants were inserted (130 maxilla, 85 mandible), 144 in extraction sockets and 71 in healed ridges. Thirty-six FFAs were delivered (21 maxilla, 15 mandible): 27 were immediately loaded and 9 were conventionally loaded. The follow-up ranged from 1 to 3 years. Two fixtures failed, yielding an implant survival rate of 95.9% (patient-based). A few complications were registered, for a “complication-free” survival of restorations of 88.9%. Conclusions. FFA restorations supported by implants with a knife-edge thread design and nanostructured, calcium-incorporated surface are successful in the short term, with high survival and low complication rates; long-term studies are needed to confirm these outcomes.
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Huang H, Wismeijer D, Shao X, Wu G. Mathematical evaluation of the influence of multiple factors on implant stability quotient values in clinical practice: a retrospective study. Ther Clin Risk Manag 2016; 12:1525-1532. [PMID: 27785040 PMCID: PMC5066996 DOI: 10.2147/tcrm.s113764] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives The objective of this study is to mathematically evaluate the influence of multiple factors on implant stability quotient values in clinical practice. Patients and methods Resonance frequency analysis was performed at T1 (measured immediately at the time of implant placement) and at T2 (measured before dental restoration) in 177 patients (329 implants). Using a multivariate linear regression model, we analyzed the influence of the following eleven candidate factors: sex, age, maxillary/mandibular location, bone type, immediate/delayed implantation, bone grafting (presence or absence), insertion torque, I-/II-stage healing pattern, implant diameter, implant length, and T1–T2 time interval. Results The following factors were identified to significantly influence the implant stability quotient (ISQ) values at T1: insertion torque, bone grafting, I-/II-stage healing pattern, immediate/delayed implantation, maxillary/mandibular location, implant diameter, and sex. In contrast, the ISQ values at T2 were significantly influenced only by three factors: implant diameter, T1–T2 time interval, and insertion torque. Conclusion Among the eleven candidate factors, seven key factors were found to influence the T1-ISQ values, while only three key factors influenced the T2-ISQ values. Both T1 and T2-ISQ values were found to be influenced by implant diameter and insertion torque. T1 was influenced specifically by the sex of the patient, the location (maxillary or mandibular), the implantation mode (immediate/delayed implantation), the healing stage, and the absence or presence of bone graft materials.
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Affiliation(s)
- Hairong Huang
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute, VU University Amsterdam and University of Amsterdam, Amsterdam, Nord-Holland, the Netherlands
| | - Daniel Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute, VU University Amsterdam and University of Amsterdam, Amsterdam, Nord-Holland, the Netherlands
| | - Xianhong Shao
- Best & Easy Dental Clinic, Hangzhou, Zhejiang Province, People's Republic of China
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute, VU University Amsterdam and University of Amsterdam, Amsterdam, Nord-Holland, the Netherlands
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Different configuration of socket shield technique in peri-implant bone preservation: An experimental study in dog mandible. Ann Anat 2016; 208:109-115. [PMID: 27565228 DOI: 10.1016/j.aanat.2016.06.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 06/09/2016] [Accepted: 06/21/2016] [Indexed: 12/20/2022]
Abstract
The aim of this study was to evaluate the influence of the residual root and peri implant bone dimensions on the clinical success of the socket shield technique. Thirty-six dental implants were installed in 6 dogs. The clinical crowns of teeth P3, P4 and M1 were beheaded. Afterwards, the roots were worn down 2-3mm in apical direction until they were located at crestal level. Posterior implant beds were prepared in the center of the roots passing by 3mm apically forming 6 groups in accordance to the remaining root thickness. Radiography of the crestal bone level was performed on day 0 and after 12 weeks. Histomorphometric analyses of the specimens were carried out to measure the crestal bone level, the bone to implant contact and the buccal and lingual bone thickness at the implant shoulder portion. Correlations between groups were analyzed through nonparametric Friedman test, statistical significance was set as p<0.05. All 36 implants were osseointegrated, but 3 samples showed a clinical inflammatory reaction and some radicular fragments presented a small resorption process. On the buccal and lingual side, the radicular fragment was attached to the buccal bone plate by a physiologic periodontal ligament. In the areas where there was space between the implant and the fragment, newly formed bone was demonstrated directly on the implant surface. Within the limitations of an animal pilot study, root-T belt technique may be beneficial in preserving and protecting the bundle bone and preservation of soft tissues. If the thickness of the buccal bone is 3mm, and the thickness of the remaining root fragment is 2mm, the socket shield technique is more predictable and the bone contours can be maintained.
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A New Total Digital Smile Planning Technique (3D-DSP) to Fabricate CAD-CAM Mockups for Esthetic Crowns and Veneers. Int J Dent 2016; 2016:6282587. [PMID: 27478442 PMCID: PMC4958427 DOI: 10.1155/2016/6282587] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 11/17/2022] Open
Abstract
Purpose. Recently, the request of patients is changed in terms of not only esthetic but also previsualization therapy planning. The aim of this study is to evaluate a new 3D-CAD-CAM digital planning technique that uses a total digital smile process. Materials and Methods. Study participants included 28 adult dental patients, aged 19 to 53 years, with no oral, periodontal, or systemic diseases. For each patient, 3 intra- and extraoral pictures and intraoral digital impressions were taken. The digital images improved from the 2D Digital Smile System software and the scanner stereolithographic (STL) file was matched into the 3D-Digital Smile System to obtain a virtual previsualization of teeth and smile design. Then, the mockups were milled using a CAM system. Minimally invasive preparation was carried out on the enamel surface with the mockups as position guides. Results. The patients found both the digital smile design previsualization (64.3%) and the milling mockup test (85.7%) very effective. Conclusions. The new total 3D digital planning technique is a predictably and minimally invasive technique, allows easy diagnosis, and improves the communication with the patient and helps to reduce the working time and the errors usually associated with the classical prosthodontic manual step.
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Soft Tissue Stability around Single Implants Inserted to Replace Maxillary Lateral Incisors: A 3D Evaluation. Int J Dent 2016; 2016:9393219. [PMID: 27298621 PMCID: PMC4889829 DOI: 10.1155/2016/9393219] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/27/2016] [Accepted: 04/24/2016] [Indexed: 11/17/2022] Open
Abstract
Purpose. To evaluate the soft tissue stability around single implants inserted to replace maxillary lateral incisors, using an innovative 3D method. Methods. We have used reverse-engineering software for the superimposition of 3D surface models of the dentogingival structures, obtained from intraoral scans of the same patients taken at the delivery of the final crown (S1) and 2 years later (S2). The assessment of soft tissues changes was performed via calculation of the Euclidean surface distances between the 3D models, after the superimposition of S2 on S1; colour maps were used for quantification of changes. Results. Twenty patients (8 males, 12 females) were selected, 10 with a failing/nonrestorable lateral incisor (test group: immediate placement in postextraction socket) and 10 with a missing lateral incisor (control group: conventional placement in healed ridge). Each patient received one immediately loaded implant (Anyridge®, Megagen, Gyeongbuk, South Korea). The superimposition of the 3D surface models taken at different times (S2 over S1) revealed a mean (±SD) reduction of 0.057 mm (±0.025) and 0.037 mm (±0.020) for test and control patients, respectively. This difference was not statistically significant (p = 0.069). Conclusions. The superimposition of the 3D surface models revealed an excellent peri-implant soft tissue stability in both groups of patients, with minimal changes registered along time.
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The Effect of Crown-to-Implant Ratio on the Clinical Performance of Extra-Short Locking-Taper Implants. J Craniofac Surg 2016; 27:675-81. [DOI: 10.1097/scs.0000000000002562] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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Mangano FG, Mastrangelo P, Luongo F, Blay A, Tunchel S, Mangano C. Aesthetic outcome of immediately restored single implants placed in extraction sockets and healed sites of the anterior maxilla: a retrospective study on 103 patients with 3 years of follow-up. Clin Oral Implants Res 2016; 28:272-282. [PMID: 26913807 DOI: 10.1111/clr.12795] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The aim of this study was to compare the aesthetic outcome of single implants in extraction sockets and healed ridges of the anterior maxilla by means of the pink aesthetic score/white aesthetic score (PES/WES) index. MATERIALS AND METHODS This retrospective study was based on data from 103 patients (43 males, 60 females) aged 24-65 years (mean age 41.4 ± 13.8 years) who had been successfully treated with a single implant in the anterior maxilla, in four different clinical centres. Forty-two patients (mean age 46.5 ± 15.1 years) were treated with a single implant in a fresh post-extraction socket (immediate implant treatment, IIT), while 61 patients (mean age 38.0 ± 11.8 years) were treated with a single implant in a healed site (conventional implant treatment, CIT). Two independent calibrated examiners applied the PES/WES index to the 103 single-tooth restorations, respectively 3 months and 3 years after implant placement. RESULTS A few biological (4.8%) and prosthetic (8.7%) complications were reported. Both IIT and CIT yielded satisfactory aesthetic outcomes. At the delivery of the final restoration, a PES/WES score of 16.6 ± 2.6 and 15.7 ± 3.0 was reported for IIT and CIT, respectively: this difference was not statistically significant. A higher decrease in the PES/WES score was observed with CIT over time. At 3 years, a PES/WES score of 16.4 ± 2.8 and 15.2 ± 3.3 was reported for IIT and CIT, respectively: this difference was statistically significant. IIT seemed to yield better aesthetic outcomes in young patients (≤30 years), with implants placed in central incisor/cuspid areas, in the presence of bone contouring. CONCLUSIONS Both immediate and conventional single-implant treatment in the anterior maxilla can yield satisfactory aesthetic outcomes, when performed by experienced clinicians in well-selected cases. Further studies are needed to confirm these results.
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Affiliation(s)
- Francesco Guido Mangano
- Department of Surgical and Morphological Sciences, Dental School, University of Varese, Varese, Italy
| | | | | | | | | | - Carlo Mangano
- Department of Medical, Oral and Biotechnological Sciences, Dental School, University of Chieti-Pescara, Chieti, Italy
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30
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Gehrke SA, da Silva Neto UT, Rossetti PHO, Watinaga SE, Giro G, Shibli JA. Stability of implants placed in fresh sockets versus healed alveolar sites: Early findings. Clin Oral Implants Res 2015; 27:577-82. [PMID: 26037595 DOI: 10.1111/clr.12624] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The present study measured implant stability quotient (ISQ) values at three different time points after surgical procedures to compare whether the stability values differed between implants placed in fresh extraction sockets versus healed alveolar sites. MATERIALS AND METHODS To measure implant stability, resonance frequency analysis (RFA) was performed in 77 patients (53 women, 24 men) with a total of 120 dental implants. These implants were divided into two groups: Group 1 included 60 implants in healed alveolar sites (22 in the maxilla, 38 in the mandible), and Group 2 included 60 implants in fresh sockets (41 in the maxilla, 19 in the mandible). Implant stability was measured immediately at implant placement (baseline), 90, and 150 days later. Statistical analysis was made using a multivariate regression linear model at implant level (α = 0.05). RESULTS Overall, the means and standard deviations of the ISQ values were 62.7 ± 7.14 (95% confidence interval [CI], 39-88) at baseline, 70.0 ± 6.22 (95% CI, 46-88) at 90 days, and 73.4 ± 5.84 (95% CI, 58-88) at 150 days. In Group 1, the ISQs ranged between 64.3 ± 6.20 and 75.0 ± 5.69, while in Group 2, presented lower values that ranged between 61.2 ± 8.09 and 71.9 ± 5.99 (P = 0.002). Anatomic location and times periods were the only identified variables with an influence on ISQ values at implant level (P < 0.0001). CONCLUSIONS The stabilities of the implants placed in the fresh sockets and in healed sites exhibited similar evolutions in ISQ values and thus osseointegration; however, the implants in the healed alveolar sites exhibited superior values at all time points.
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Affiliation(s)
- Sergio Alexandre Gehrke
- Biotecnos Research Center, Santa Maria, Brazil.,Catholic University of Uruguay, Montevideo, Uruguay.,Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, Brazil
| | | | | | - Sidney Eiji Watinaga
- Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, Brazil
| | - Gabriela Giro
- Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, Brazil
| | - Jamil Awad Shibli
- Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos, Brazil
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Guarnieri R, Belleggia F, Grande M. Immediate versus Delayed Treatment in the Anterior Maxilla Using Single Implants with a Laser-Microtextured Collar: 3-Year Results of a Case Series on Hard- and Soft-Tissue Response and Esthetics. J Prosthodont 2015; 25:135-45. [DOI: 10.1111/jopr.12295] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2014] [Indexed: 11/26/2022] Open
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Boardman N, Darby I, Chen S. A retrospective evaluation of aesthetic outcomes for single-tooth implants in the anterior maxilla. Clin Oral Implants Res 2015; 27:443-51. [DOI: 10.1111/clr.12593] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Nicholas Boardman
- Periodontics; Melbourne Dental School; University of Melbourne; Parkville Vic. Australia
| | - Ivan Darby
- Periodontics; Melbourne Dental School; University of Melbourne; Parkville Vic. Australia
| | - Stephen Chen
- Periodontics; Melbourne Dental School; University of Melbourne; Parkville Vic. Australia
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Single-tooth morse taper connection implant placed in grafted site of the anterior maxilla: clinical and radiographic evaluation. Case Rep Dent 2014; 2014:183872. [PMID: 25431687 PMCID: PMC4238176 DOI: 10.1155/2014/183872] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/30/2014] [Indexed: 11/25/2022] Open
Abstract
The aim of this study was to achieve aesthetically pleasing soft tissue contours in a severely compromised tooth in the anterior region of the maxilla. For a right-maxillary central incisor with localized advanced chronic periodontitis a tooth extraction followed by reconstructive procedures and delayed implant placement was proposed and accepted by the patient. Guided bone regeneration (GBR) technique was employed, with a biphasic calcium-phosphate (BCP) block graft placed in the extraction socket in conjunction with granules of the same material and a resorbable barrier membrane. After 6 months of healing, an implant was installed. The acrylic provisional restoration remained in situ for 3 months and then was substituted with the definitive crown. This ridge reconstruction technique enabled preserving both hard and soft tissues and counteracting vertical and horizontal bone resorption after tooth extraction and allowed for an ideal three-dimensional implant placement. Localized severe alveolar bone resorption of the anterior maxilla associated with chronic periodontal disease can be successfully treated by means of ridge reconstruction with GBR and delayed implant insertion; the placement of an early-loaded, Morse taper connection implant in the grafted site was effective to create an excellent clinical aesthetic result and to maintain it along time.
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Abstract
The definition of failure for dental implants has evolved from lack of osseointegration to increased concern for other aspects, such as esthetics. However, esthetic failure in implant dentistry has not been well defined. Although multiple esthetic indices have been validated for objectively evaluating clinical outcomes, including failure of an implant-supported crown, only one author has determined a failure threshold. On the basis of objective indices, esthetic failures in implant dentistry can be categorized as pink-tissue failures and white-tissue failures. This article discusses esthetic failures, the factors involved in these failures, and their prevention and treatment.
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Affiliation(s)
- Rodrigo Fuentealba
- Restorative Division, University of Kentucky College of Dentistry, 800 Rose Street, D642, Lexington, KY 40356-0297, USA.
| | - Jorge Jofré
- Center for Advanced Prosthodontics and Implant Dentistry, University of Concepcion, Victoria 232 Barrio Universitario Concepción, Concepcion 4030000, Chile
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Shi JY, Wang R, Zhuang LF, Gu YX, Qiao SC, Lai HC. Esthetic outcome of single implant crowns following type 1 and type 3 implant placement: a systematic review. Clin Oral Implants Res 2014; 26:768-74. [PMID: 24450873 DOI: 10.1111/clr.12334] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2013] [Indexed: 02/04/2023]
Affiliation(s)
- Jun-Yu Shi
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai China
| | - Ren Wang
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai China
| | - Long-Fei Zhuang
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai China
| | - Ying-Xin Gu
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai China
| | - Shi-Chong Qiao
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai China
| | - Hong-Chang Lai
- Department of Oral and Maxillo-facial Implantology; Shanghai Ninth People's Hospital; School of Medicine; Shanghai Jiaotong University; Shanghai China
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Mangano C, Levrini L, Mangano A, Mangano F, Macchi A, Caprioglio A. Esthetic Evaluation of Implants Placed after Orthodontic Treatment in Patients with Congenitally Missing Lateral Incisors. J ESTHET RESTOR DENT 2013; 26:61-71. [DOI: 10.1111/jerd.12081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Carlo Mangano
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Luca Levrini
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Alessandro Mangano
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Francesco Mangano
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Aldo Macchi
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Alberto Caprioglio
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
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