Short-term comparison of the clinical efficacy of angulated screw-retained implant crowns and cemented implant crowns in esthetics region

doi:10.19439/j.sjos.2022.04.017

Abstract

Abstract: PURPOSE: To compare the clinical efficacy of angulated screw channel abutments and prefabricated titanium abutments on the restoration of single implant crowns in esthetics region. METHODS: The study was a prospective, single center, randomized controlled trial. Patients with the need of restoration of single tooth in esthetics region were included from June 2018 to June 2019. Forty patients were randomly assigned into two groups: screw-retained crowns with angulated screw channel abutments(angulated group, AG) and cemented crowns with prefabricated Ti abutments (cemented group, CG). Clinical and radiological evaluations were performed on the day of final crowns delivery and 6 months later. Implant survival rate, marginal bone loss (MBL), mechanical complications, peri-implant conditions (Probing depth, PD; bleeding on probing, BOP%), pink esthetics score/white esthetics score(PES/WES) and patients' satisfaction were assessed. The data was analyzed with SPSS 19.0 software package. RESULTS: Thirty-six patients (AG: 19, CG: 17) attended the 6-month clinical trial. Implant survival rates were both 100% in two groups. The MBL was (0.21±0.18) mm for AG and (0.38±0.40) mm for CG (P>0.05). The BOP% was significantly higher in AG than that in CG (P=0.04). No significant difference of mechanical complications, PD, PES/WES and patients’ satisfaction was found between the two groups(P>0.05). CONCLUSIONS: Based on the present results, both treatment options show acceptable clinical outcomes in the short term. Angulated screw-retained crowns may benefit the peri-implant soft tissue; however, studies with long-term follow-up are needed to verify the results.

Key words: Dental implant, Angulated screw channel, Screw-retained, Cemented retention, Esthetics

CLC Number:

R783.6

LYU Xiao-lei, SHI Jun-yu, QIAN Shu-jiao, LAI Hong-chang. Short-term comparison of the clinical efficacy of angulated screw-retained implant crowns and cemented implant crowns in esthetics region[J]. Shanghai Journal of Stomatology, 2022, 31(4): 423-428.

References

[1] Jung RE, Zembic A, Pjetursson BE, et al.Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow-up of 5 years[J]. Clin Oral Implants Res, 2012, 23(Suppl 6): 2-21.
[2] Elani HW, Starr JR, Da Silva JD, et al.Trends in dental implant use in the U.S., 1999-2016, and projections to 2026[J]. J Dent Res, 2018, 97(13): 1424-1430.
[3] van Velzen FJ, Ofec R, Schulten EA, et al.10-year survival rate and the incidence of peri-implant disease of 374 titanium dental implants with a SLA surface: a prospective cohort study in 177 fully and partially edentulous patients[J]. Clin Oral Implants Res, 2015, 26(10): 1121-1128.
[4] Sailer I, Mühlemann S, Zwahlen M, et al.Cemented and screw-retained implant reconstructions: a systematic review of the survival and complication rates[J]. Clin Oral Implants Res, 2012, 23(Suppl 6): 163-201.
[5] Obermeier M, Ristow O, Erdelt K, et al.Mechanical performance of cement- and screw-retained all-ceramic single crowns on dental implants[J].Clin Oral Investig, 2018, 22(2): 981-991.
[6] Albrektsson T, Zarb G, Worthington P, et al.The long-term efficacy of currently used dental implants: a review and proposed criteria of success[J]. Int J Oral Maxillofac Implants,1986, 1(1): 11-25.
[7] Squier RS, Agar JR, Duncan JP, et al.Retentiveness of dental cements used with metallic implant components[J]. Int J Oral Maxillofac Implants, 2001, 16(6): 793-798.
[8] Wittneben JG, Joda T, Weber HP, et al.Screw retained vs. cement retained implant-supported fixed dental prosthesis[J]. Periodontol 2000, 2017, 73(1): 141-151.
[9] Korsch M, Robra BP, Walther W.Cement-associated signs of inflammation: retrospective analysis of the effect of excess cement on peri-implant tissue[J].Int J Prosthodont, 2015, 28(1): 11-8.
[10] Kotsakis GA, Zhang L, Gaillard P, et al.Investigation of the association between cement retention and prevalent peri-implant diseases: a cross-sectional study[J]. J Periodontol, 2016, 87(3): 212-220.
[11] Dalago HR, Schuldt Filho G, Rodrigues MA, et al.Risk indicators for peri-implantitis. a cross-sectional study with 916 implants[J]. Clin Oral Implants Res, 2017, 28(2): 144-150.
[12] Staubli N, Walter C, Schmidt JC, et al.Excess cement and the risk of peri-implant disease - a systematic review[J]. Clin Oral Implants Res, 2017, 28(10): 1278-1290.
[13] Lemos CA, de Souza Batista VE, Almeida DA, et al. Evaluation of cement-retained versus screw-retained implant-supported restorations for marginal bone loss: a systematic review and meta-analysis[J]. J Prosthet Dent, 2016, 115(4): 419-427.
[14] Tallarico M, Caneva M, Baldini N, et al.Patient-centered rehabilitation of single, partial, and complete edentulism with cemented- or screw-retained fixed dental prosthesis: The First Osstem Advanced Dental Implant Research and Education Center Consensus Conference 2017[J]. Eur J Dent, 2018, 12(4): 617-626.
[15] Delize V, Bouhy A, Lambert F, et al.Intrasubject comparison of digital vs. conventional workflow for screw-retained single-implant crowns: prosthodontic and patient-centered outcomes[J]. Clin Oral Implants Res, 2019, 30(9): 892-902.
[16] Shadid R, Sadaqa N.A comparison between screw- and cement-retained implant prostheses. a literature review[J]. J Oral Implantol, 2012, 38(3): 298-307.
[17] Garcia-Gazaui S, Razzoog M, Sierraalta M, et al.Fabrication of a screw-retained restoration avoiding the facial access hole: a clinical report[J]. J Prosthet Dent, 2015, 114(5): 621-624.
[18] Friberg B, Ahmadzai M.A prospective study on single tooth reconstructions using parallel walled implants with internal connection (NobelParallel CC) and abutments with angulated screw channels (ASC)[J]. Clin Implant Dent Relat Res, 2019, 21(2): 226-231.
[19] Shi JY, Lv XL, Gu YX, et al.Angulated screw-retained and cemented implant crowns following flapless immediate implant placement in the aesthetic region: a 1-year prospective cohort study[J]. Int J Oral Implantol (Berl), 2020, 13(3): 269-277.
[20] Drew A, Randi A, Dipede L, et al.Fracture strength of implant screw-retained all-ceramic crowns with the use of the angulated screw channel: a pilot study[J]. Int J Periodontics Restorative Dent, 2020, 40(2): 245-252.
[21] Cochran DL, Buser D, Ten Bruggenkate CM, 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, 2002, 13(2): 144-153.
[22] Shi JY, Jie N, Zhuang LF, et al.Peri-implant conditions and marginal bone loss around cemented and screw-retained single implant crowns in posterior regions: a retrospective cohort study with up to 4 years follow-up[J]. PLoS One, 2018, 13(2): e0191717.
[23] Fürhauser R, Florescu D, Benesch T, et al.Evaluation of soft tissue around single-tooth implant crowns: the pink esthetic score[J]. Clin Oral Implants Res, 2005, 16(6): 639-644.
[24] Belser UC, Grütter L, Vailati F, et al.Outcome evaluation of early placed maxillary anterior single-tooth implants using objective esthetic criteria: a cross-sectional, retrospective study in 45 patients with a 2- to 4-year follow-up using pink and white esthetic scores[J]. J Periodontol, 2009, 80(1): 140-151.
[25] Palmer RM, Palmer RJ, Smith BJ.A 5-year prospective study of Astra single tooth implants[J]. Clin Oral Implants Res, 2000, 11(2): 179-182.
[26] Pol CWP, Raghoebar GM, Maragkou Z, et al.Full-zirconia single-tooth molar implant-supported restorations with angulated screw channel abutments: a 1-year prospective case series study[J]. Clin Implant Dent Relat Res, 2020, 22(1): 138-144.
[27] Jirajariyavej B, Wanapirom P, Anunmana C.Influence of implant abutment material and ceramic thickness on optical properties[J]. J Prosthet Dent, 2018, 119(5): 819-825.
[28] Sanz-Martín I, Sanz-Sánchez I, Carrillo De Albornoz A, et al. Effects of modified abutment characteristics on peri-implant soft tissue health: a systematic review and meta-analysis[J]. Clin Oral Implants Res, 2018, 29(1): 118-129.
[29] Sakamoto S, Ro M, Al-Ardah A, et al.Esthetic abutment design for angulated screw channels: a technical report[J]. J Prosthet Dent, 2018, 119(6): 912-915.