International Journal of Chemical and Biochemical Sciences (ISSN 2226-9614)[/vc_column_text][/vc_column][/vc_row]

VOLUME 25(19) (2024)

Impact of PEEK matrix attachment on stress distribution

of maxillary implant retained overdenture

*¹Fatma Fouad Sadeq, ²Hany Ibrahim Eid, ³Ahmed Mohamed Osama,

 ⁴Noha Helmy Nawar

¹Faculty of Dentistry, King Salman International University, Al Tur, South Sinai Governorate, Egypt

²Faculty of Dentistry, Ain Shams University, Organization of African Unity St, Egypt

³Faculty of Dentistry, Ain Shams University, Organization of African Unity St, Egypt

⁴Faculty of Dentistry, Ain Shams University, Organization of African Unity St,Cairo Governorate, Egypt

Abstract

Application of new modified polymers in prosthetic dentistry involved using “PEEK” in the female part of novaloc attachment. The current study aims to assess stresses induced on maxillary overdenture retained with SLActive coated implant with novaloc attachment employing PEEK as a female part against conventional SLA coated implant with locator attachment. Ten digital resin models were fabricated using digital software. Five for group “I NC” with peek attachment, five for group “II L” with locator attachment. Four implants were planned in the resin models at bilateral lateral incisors and first premolar positions. The strain gauges were installed mesial and distal to each implant, followed by denture placement and load application. Under bilateral loading, group “I NC” implants 1,4 “D” was lower than group “II L” with (27 ± 343) as P=0.0001, “M” was lower with (253.5 ± 5.96) as P=0.0001, similarly in implants 2,3 “D” was lower with (10.5± 4.25) as P=0.03, also “M” was lower with (41 ± 3.5) as P=0.0001. Also, during unilateral loading, group “II L” exhibited higher strain than group “I NC” as (P = 0.0001). where “4D” was higher with a mean difference of (-153.33). while “4M” was higher with a mean difference of (-1978.17).  Moreover, “3D” was higher with a mean difference of (-268.33). also, “3M” was higher with a mean difference of (-88.33). Novaloc attachment with its PEEK Matrix offer better stress distribution than conventional locator.

Keywords: Edentulous Maxilla, Implant retained, Overdenture, Polyetheretherketone, Novaloc.

Full length article – PDF   *Corresponding Author, e-mail: fatmafouad666@gmail.com         Doi # https://doi.org/10.62877/54-IJCBS-24-25-19-54