Osteotome sinus floor elevation with tapered implants: a short-term evaluation

doi:10.19439/j.sjos.2023.03.016

Abstract

Abstract: PURPOSE: The aim of this study was to evaluate the short-term clinical outcome of tapered implants placed in posterior maxilla with osteotome sinus floor elevation (OSFE) technique. METHODS: The study population comprised 40 patients in whom 44 Astra tapered implants were inserted with OSFE technique from March to September in 2019. The surgical indication was that the bone height below the maxillary sinus was considered to be 2mm ~8mm. Astra tapered implants were inserted. Prosthetic restoration was completed 4 months after surgery. The implant success rate and stability, as well as osseointegration of the implant were clinically evaluated, and bone gain around the implants were measured. The data were analyzed using SPSS 19.0 software package. RESULTS: During the study period,the implant survival rate was 100%. The mean variation of implant stability quotient(ISQ) was 12.07±5.86. The mean value of ISQ ranged from 67.55±8.07 to 79.62±5.08. The average marginal bone loss was (0.32±0.29) mm. The endo-sinus bone gain(ESBG) was (1.06±0.4) mm. No mechanical complication was observed. The average probing depth around the implant was (3.2±1.51) mm, the bleeding on probing rate was(11.36±4.28)%, and the modified plaque index was 1.23±0.43. CONCLUSIONS: Astra tapered implants were found to produce predictable results in osteotome sinus floor elevation surgery. Further properly designed clinical trials are required to validate the use of tapered dental implants in sinus floor elevation technique.

Key words: Sinus floor elevation, Tapered implant, Osteotome

CLC Number:

R782.1

LU Yu-tung, SHI Jun-yu, LAI Hong-chang. Osteotome sinus floor elevation with tapered implants: a short-term evaluation[J]. Shanghai Journal of Stomatology, 2023, 32(3): 302-307.

References

[1] das Neves FD, Fones D, Bernardes SR, et al. Short implants-an analysis of longitudinal studies[J]. Int J Oral Maxillofac Implants, 2006, 21(1): 86-93.
[2] Jaffin RA, Berman CL.The excessive loss of Brånemark fixtures in type Ⅳ bone: a 5-year analysis[J]. J Periodontol, 1991, 62(1): 2-4.
[3] Lai HC, Zhang ZY, Wang F, et al.Resonance frequency analysis of stability on ITI implants with osteotome sinus floor elevation technique without grafting: a 5-month prospective study[J]. Clin Oral Implants Res, 2008, 19(5): 469-475.
[4] Woo I, Le BT.Maxillary sinus floor elevation: review of anatomy and two techniques[J]. Implant Dent, 2004, 13(1): 28-32.
[5] Gonzalez S, Tuan MC, Ahn KM, et al.Crestal approach for maxillary sinus augmentation in patients with ≤4 mm of residual alveolar bone[J]. Clin Implant Dent Relat Res, 2014, 16(6): 827-835.
[6] 施梦汝, 谢伟丽, 施武阁, 等. 柱形锥形种植体在不同种植深度的三维有限元研究[J]. 口腔医学, 2019, 39(7): 577-580.
[7] Fermergård R, Astrand P.Osteotome sinus floor elevation and simultaneous placement of implants-a 1-year retrospective study with Astra Tech implants[J]. Clin Implant Dent Relat Res, 2008, 10(1): 62-69.
[8] Hürzeler M, Fickl S, Zuhr O, et al.Peri-implant bone level around implants with platform-switched abutments: preliminary data from a prospective study[J]. J Oral Maxillofac Surg, 2007, 65(7 Suppl 1): 33-39.
[9] Delgado-Ruiz RA, Calvo-Guirado JL, Abboud M, et al.Connective tissue characteristics around healing abutments of different geometries: new methodological technique under circularly polarized light[J]. Clin Implant Dent Relat Res, 2015, 17(4): 667-680.
[10] Shin SY, Han DH.Influence of a microgrooved collar design on soft and hard tissue healing of immediate implantation in fresh extraction sites in dogs[J]. Clin Oral Implants Res, 2010, 21(8): 804-814.
[11] Shin YK, Han CH, Heo SJ, et al.Radiographic evaluation of marginal bone level around implants with different neck designs after 1 year[J]. Int J Oral Maxillofac Implants, 2006, 21(5): 789-794.
[12] Stanford CM.Surface modifications of dental implants[J]. Aust Dent J, 2010, 53(Suppl 1): S26-S33.
[13] Cochran DL, Buser D, Bruggenkate CMT, et al.The use of reduced healing times on ITI implants with a sandblasted and acid-etched (SLA) surface: early results from clinical trials on ITI SLA implants[J]. Clin Oral Implants Res, 2010, 13(2): 144-153.
[14] Tatum H.Maxillary and sinus implant reconstructions[J]. Dent Clin North Am, 1986, 30(2): 207-229.
[15] Summers RB.A new concept in maxillary implant surgery: the osteotome technique[J]. Compendium, 1994, 15(2): 152-162.
[16] Jensen OT, Shulman LB, Block MS, et al.Report of the sinus consensus conference of 1996[J]. Int J Oral Maxillofac Implants, 1998, 13( Suppl): 11-45.
[17] Rosen PS, Summers R, Mellado JR, et al.The bone-added osteotome sinus floor elevation technique: multicenter retrospective report of consecutively treated patients[J]. Int J Oral Maxillofac Implants, 1998, 14(6): 853-858.
[18] Pjetursson BE, Lang NP.Sinus floor elevation utilizing the transalveolar approach[J]. Periodontol 2000, 2014, 66(1): 59-71.
[19] Nedir R, Nurdin N, Najm SA, et al.Short implants placed with or without grafting into atrophic sinuses: the 5-year results of a prospective randomized controlled study[J]. Clin Oral Implants Res, 2017, 28(7): 877-886.
[20] Leblebicioglu B, Ersanli S, Karabuda C, et al.Radiographic evaluation of dental implants placed using an osteotome technique[J]. J Periodontol, 2005, 76(3): 385-390.
[21] Lundgren S, Andersson S, Gualini F, et al.Bone reformation with sinus membrane elevation: a new surgical technique for maxillary sinus floor augmentation[J].Clin Implant Dent Relat Res, 2004, 6(3): 165-173.
[22] Thor A, Sennerby L, Hirsch JM, et al.Bone formation at the maxillary sinus floor following simultaneous elevation of the mucosal lining and implant installation without graft material: an evaluation of 20 patients treated with 44 Astra Tech implants[J]. J Oral Maxillofac Surg, 2007, 65(7 supp 1): 64-72.
[23] Rammelsberg P, Kilian S, Büsch C, et al.The effect of transcrestal sinus-floor elevation without graft on the long-term prognosis of maxillary implants[J]. J Clin Periodontol, 2020, 47(5): 640-648.
[24] Lambert F, Léonard A, Drion P, et al.Influence of space-filling materials in subantral bone augmentation: blood clot vs. autogenous bone chips vs. bovine hydroxyapatite[J]. Clin Oral Implants Res, 2011, 22(5): 538-545.
[25] Aloy-Prósper A, Maestre-Ferrín L, Peñarrocha-Oltra D, et al.Marginal bone loss in relation to the implant neck surface: an update[J]. Med Oral Patol Oral Cir Bucal, 2011, 16(3): e365-e368.
[26] Lee DW, Choi YS, Park KH, et al.Effect of microthread on the maintenance of marginal bone level: a 3-year prospective study[J]. Clin Oral Implants Res, 2010, 18(4): 465-470.
[27] Ormianer Z, Palti A.Long-term clinical evaluation of tapered multi-threaded implants: results and influences of potential risk factors[J]. J Oral Implantol, 2006, 32(6): 300-307.
[28] Atieh MA, Alsabeeha N, Duncan WJ.Stability of tapered and parallel-walled dental implants: a systematic review and meta-analysis[J]. Clin Implant Dent Relat Res, 2018, 20(4): 634-645.
[29] Schiegnitz E, Al-Nawas B, Tegner A, et al.Clinical and radiological long-term outcome of a tapered implant system with special emphasis on the influence of augmentation procedures[J]. Clin Implant Dent Relat Res, 2016, 18(4): 810-820.
[30] Jacobs R, Pittayapat P, van Steenberghe D, et al. A split-mouth comparative study up to 16 years of two screw-shaped titanium implant systems[J]. J Clin Periodontol, 2010, 37(12): 1119-1127.
[31] Menicucci G, Pachie E, Lorenzetti M, et al.Comparison of primary stability of straight-walled and tapered implants using an insertion torque device[J]. Int J Prosthodont, 2012, 25(5): 465-471.
[32] Romanos GE, Ciornei G, Jucan A, et al.In vitro assessment of primary stability of Straumann^® implant designs[J]. Clin Implant Dent Relat Res, 2014, 16(1): 89-95.
[33] O'Sullivan D, Sennerby L, Meredith N. Measurements comparing the initial stability of five designs of dental implants: a human cadaver study[J]. Clin Implant Dent Relat Res, 2000, 2(2): 85-92.
[34] Javed F, Ahmed HB, Crespi R, et al.Role of primary stability for successful osseointegration of dental implants: factors of influence and evaluation[J]. Interv Med Appl Sci, 2013, 5(4): 162-167.
[35] Kokovic V, Jung R, Feloutzis A, et al.Immediate vs. early loading of SLA implants in the posterior mandible: 5-year results of randomized controlled clinical trial[J]. Clin Oral Implants Res, 2014, 25(2): e114-119.