Effects of Immediate and Delayed Loading on the Outcomes of All-on-4 Treatment: A Prospective Study
Abstract
Objectives: The purpose of this study was to compare the outcomes of immediate and delayed rehabilitation of edentulous jaws by means of two straight and two tilted implants after one year of function.
Materials and Methods: Thirty consecutive patients (16 males, 14 females) were enrolled in this study. Two anterior straight and two posterior tilted implants were placed in each patient. According to the implant insertion torque and the need for bone grafting, implants were loaded immediately (at 72 hours) or delayed (after four months) using a fixed metal resin prosthesis.
Results: One axial implant failed in the delayed group after one year of loading, resulting in cumulative implant survival rate of 99.3%. The mean marginal bone loss was 0.84mm. No significant difference was found between axial and tilted implants in the two groups (P>0.05)
Conclusions: Based on the results, immediate or delayed fabrication of final prosthesis on two tilted and two axial implants did not result in significant differences in survival rates or marginal bone loss.
- Basa S, Varol A, Turker N. Alternative bone expansion technique for immediate placement of implants in the edentulous posterior mandibular ridge: a clinical report. Int J Oral Maxillofac Implants. 2004 Jul-Aug;19(4):554-8.
- Graziani F, Donos N, Needleman I, Gabriele M, Tonetti M. Comparison of implant survival following sinus floor augmentation procedures with implants placed in pristine posterior maxillary bone: a systematic review. Clin Oral Implants Res. 2004 Dec;15(6):677-82.
- Atieh MA, Zadeh H, Stanford CM, Cooper LF. Survival of short dental implants for treatment of posterior partial edentulism: a systematic review. Int J Oral Maxillofac Implants. 2012 Nov-Dec;27(6): 1323-31.
- Misch CE, Steignga J, Barboza E, Misch-Dietsh F, Cianciola LJ, Kazor C. Short dental implants in posterior partial edentulism: a multicenter retrospective 6-year case series study. J Periodontol. 2006 Aug;77(8):1340-7.
- Renouard F, Nisand D. Short implants in the severely resorbed maxilla: a 2-year retrospective clinical study. Clin Implant Dent Relat Res. 2005;7 Suppl 1:S104-10.
- Chrcanovic BR, Custodio AL. Inferior alveolar nerve lateral transposition. Oral Maxillofac Surg. 2009 Dec;13(4):213-9.
- Chrcanovic BR, Pedrosa AR, Neto Custodio AL. Zygomatic implants: a critical review of the surgical techniques. Oral Maxillofac Surg. 2013 Mar;17(1):1-9.
- Calandriello R, Tomatis M. Simplified treatment of the atrophic posterior maxilla via immediate/early function and tilted implants: A prospective 1-year clinical study. Clin Implant Dent Relat Res. 2005;7 Suppl 1:S1-12.
- Krekmanov L, Kahn M, Rangert B, Lindstrom H. Tilting of posterior mandibular and maxillary implants for improved prosthesis support. Int J Oral Maxillofac Implants. 2000 May-Jun;15(3):405-14.
- Francetti L, Agliardi E, Testori T, Romeo D, Taschieri S, Del Fabbro M. Immediate rehabilitation of the mandible with fixed full prosthesis supported by axial and tilted implants: interim results of a single cohort prospective study. Clin Implant Dent Relat Res. 2008 Dec;10(4):255-63.
- Friberg B, Jemt T. Rehabilitation of edentulous mandibles by means of four TiUnite implants after one-stage surgery: a 1-year retrospective study of 75 patients. Clin Implant Dent Relat Res. 2010 May;12 Suppl 1:e56-62.
- Malo P, Araujo Nobre MD, Lopes A, Rodrigues R. Double full-arch versus single full-arch, four implant-supported rehabilitations: A retrospective, 5-year cohort study. J Prosthodont. 2015 Jun;24(4):263-70.
- Malo P, de Araujo Nobre MA, Lopes AV, Rodrigues R. Immediate loading short implants inserted on low bone quantity for the rehabilitation of the edentulous maxilla using an All-on-4 design. J Oral Rehabil. 2015 Aug;42(8):615-23.
- Ata-Ali J, Penarrocha-Oltra D, Candel-Marti E, Penarrocha-Diago M. Oral rehabilitation with tilted dental implants: a metaanalysis. Med Oral Patol Oral Cir Bucal. 2012 Jul;17(4):e582-7.
- Malo P, Rangert B, Nobre M. "All-on-Four" immediate-function concept with Branemark System implants for completely edentulous mandibles: a retrospective clinical study. Clin Implant Dent Relat Res. 2003 Mar;5 Suppl 1:2-9.
- Malo P, Rangert B, Nobre M. All-on-4 immediate-function concept with Branemark System implants for completely edentulous maxillae: a 1-year retrospective clinical study. Clin Implant Dent Relat Res. 2005 Jul;7 Suppl 1:S88-94.
- Agnini A, Agnini AM, Romeo D, Chiesi M, Pariente L, Stappert CF. Clinical investigation on axial versus tilted implants for immediate fixed rehabilitation of edentulous arches: preliminary results of a single cohort study. Clin Implant Dent Relat Res. 2014 Aug;16(4):527-39.
- Agliardi E, Clerico M, Ciancio P, Massironi D. Immediate loading of full-arch fixed prostheses supported by axial and tilted implants for the treatment of edentulous atrophic mandibles. Quintessence Int. 2010 Apr;41(4):285-93.
- Agliardi E, Panigatti S, Clerico M, Villa C, Malo P. Immediate rehabilitation of the edentulous jaws with full fixed prostheses supported by four implants: interim results of a single cohort prospective study. Clin Oral Implants Res. 2010 May;21(5):459-65.
- Calandriello R, Tomatis M, Rangert B. Immediate functional loading of Branemark System implants with enhanced initial stability: a prospective 1- to 2-year clinical and radiographic study. Clin Implant Dent Relat Res. 2003 Mar;5 Suppl 1:10-20.
- Chrcanovic BR, Albrektsson T, Wennerberg A. Immediately loaded non-submerged versus delayed loaded submerged dental implants: a meta-analysis. Int J Oral Maxillofac Surg. 2015 Apr;44(4):493-506.
- Sennerby L, Gottlow J. Clinical outcomes of immediate/early loading of dental implants. A literature review of recent controlled prospective clinical studies. Aust Dent J. 2008 Jun;53 Suppl 1:S82-8.
- Tealdo T, Menini M, Bevilacqua M, Pera F, Pesce P, Signori A, et al. Immediate versus delayed loading of dental implants in edentulous patients' maxillae: a 6-year prospective study. Int J Prosthodont. 2014 May-Jun;27(3):207-14.
- Van de Velde T, Collaert B, De Bruyn H. Immediate loading in the completely edentulous mandible: technical procedure and clinical results up to 3 years of functional loading. Clin Oral Implants Res. 2007 Jun;18(3):295-303.
- Agliardi EL, Francetti L, Romeo D, Taschieri S, Del Fabbro M. Immediate loading in the fully edentulous maxilla without bone grafting: the V-II-Vtechnique. Minerva Stomatol. 2008 May;57(5):251-9, 259-63.
- Wang HL, Ormianer Z, Palti A, Perel ML, Trisi P, Sammartino G. Consensus conference on immediate loading: the single tooth and partial edentulous areas. Implant Dent. 2006 Dec;15(4):324-33.
- Esposito M, Grusovin MG, Coulthard P, Worthington HV. Different loading strategies of dental implants: a Cochrane systematic review of randomised controlled clinical trials. Eur J Oral Implantol. 2008 Dec;1(4):259-76.
- Barikani H, Rashtak S, Akbari S, Badri S, Daneshparvar N, Rokn A. The effect of implant length and diameter on the primary stability in different bone types. J Dent (Tehran). 2013 Sep; 10(5):449-55.
- Barikani H, Rashtak S, Akbari S, Fard MK, Rokn A. The effect of shape, length and diameter of implants on primary stability based on resonance frequency analysis. Dent Res J (Isfahan). 2014 Jan;11 (1):87-91.
- Chrcanovic BR, Albrektsson T, Wennerberg A. Reasons for failures of oral implants. J Oral Rehabil. 2014 Jun;41(6):443-76.
- Alikhasi M, Siadat H, Rahimian S. The Effect of Implant Angulation on the Transfer Accuracy of External-Connection Implants. Clin Implant Dent Relat Res. 2015 Aug;17(4):822-9.
- Ehsani S, Siadat H, Alikhasi M. Comparative evaluation of impression accuracy of tilted and straight implants in All-on-Four technique. Implant Dent. 2014 Apr;23(2):225-30.
- Ghoveizi R, Alikhasi M, Siadat MR, Siadat H, Sorouri M. A radiographic comparison of progressive and conventional loading on crestal bone loss and density in single dental implants: a randomized controlled trial study. J Dent (Tehran). 2013 Mar;10(2):155-63.
- Malo P, Nobre M, Lopes A. The rehabilitation of completely edentulous maxillae with different degrees of resorption with four or more immediately loaded implants: a 5-year retrospective study and a new classification. Eur J Oral Implantol. 2011 Autumn;4(3):227-43.
- Malo P, de Araujo Nobre M, Borges J, Almeida R. Retrievable metal ceramic implant-supported fixed prostheses with milled titanium frameworks and all-ceramic crowns: retrospective clinical study with up to 10 years of follow-up. J Prosthodont. 2012 Jun;21(4):256-64.
- Kinsel RP, Lin D. Retrospective analysis of porcelain failures of metal ceramic crowns and fixed partial dentures supported by 729 implants in 152 patients: patient-specific and implant-specific predictors of ceramic failure. J Prosthet Dent. 2009 Jun;101(6):388-94.
- Agliardi EL, Pozzi A, Stappert CF, Benzi R, Romeo D, Gherlone E. Immediate fixed rehabilitation of the edentulous maxilla: a prospective clinical and radiological study after 3 years of loading. Clin Implant Dent Relat Res. 2014 Apr;16(2):292-302.
- Malo P, de Araujo Nobre M, Lopes A, Ferro A, Gravito I. All-on-4® treatment concept for the rehabilitation of the completely edentulous mandible: A 7-year clinical and 5-year radiographic retrospective case series with risk assessment for implant failure and marginal bone level. Clin Implant Dent Relat Res. 2015 Oct;17 Suppl 2:e531-41.
- Del Fabbro M, Bellini CM, Romeo D, Francetti L. Tilted implants for the rehabilitation of edentulous jaws: a systematic review. Clin Implant Dent Relat Res. 2012 Aug;14(4):612-21.
- Monje A, Chan HL, Suarez F, Galindo-Moreno P, Wang HL. Marginal bone loss around tilted implants in comparison to straight implants: a meta-analysis. Int J Oral Maxillofac Implants. 2012 Nov-Dec;27(6):1576-83.
- Del Fabbro M, Ceresoli V. The fate of marginal bone around axial vs. tilted implants: a systematic review. Eur J Oral Implantol. 2014 Summer;7 Suppl 2:S171-89.
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Issue | Vol 13, No 6 (2016) | |
Section | Original Article | |
Keywords | ||
Dental Implants Immediate Dental Implant Loading Prospective Studies |
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