Evaluation of the Stability of Open-Tray Impression Coping Using Two Different Impression Materials at Three Different Subgingival Implant Placement Depths DOI Open Access

Gayathri P.M,

Kala Sukumaran,

K Harshakumar

и другие.

Cureus, Год журнала: 2024, Номер unknown

Опубликована: Май 26, 2024

Objective To evaluate and compare the stability of open tray impression coping within set while attaching lab analog when polyether (PE) heavy body polyvinyl siloxane (PVS) putty materials were used implant platform was placed sub-gingivally at three different depths. Methods Two materials, PE PVS, custom-made plexiglass models with embedded single implants to simulate positioning depths 0 mm, 2 4 sub-gingivally, in study. Open impressions made after model. Implant attached impression, its measured using a universal testing machine. Forty-two six groups, seven each group. Descriptive statistics such as mean standard deviation calculated. A comparison between two depth done an independent t-test. Comparison subgingival material by one-way ANOVA Scheffe multiple test (post-hoc analysis). The level significance p<0.05. Results force Newtons required for displacement impression. mm gave highest value (4.37+/-0.41), least offered PVS (1.88+/-0.37). When t-test values there statistically significant difference mm. On doing groups PVS. tests analysis) revealed placement both Conclusion accuracy master cast is important determinant precise fit long life final prosthesis. In case maxillary anterior placements where deep needed aesthetic functional reasons, should be selected carefully ensure coping. Among included present study, maximum compared

Язык: Английский

New Three Dimensional-Printed Polyethylene Terephthalate Glycol Liners for Hip Joint Endoprostheses: A Bioactive Platform for Bone Regeneration DOI Open Access

Gheorghe Iosub,

Ioana-Alexandra Lungescu,

Alexandra Cătălina Bîrcă

и другие.

Materials, Год журнала: 2025, Номер 18(6), С. 1206 - 1206

Опубликована: Март 8, 2025

Osteoporosis and bone defects are commonly observed in postmenopausal women, often linked to decreased folic acid levels, which play a crucial role metabolism regeneration. This study investigates 3D-printed polyethylene terephthalate glycol (PETG)-based porous scaffolds impregnated with chitosan (CS), hydroxyapatite (HAp), (FA) for tissue engineering applications. The PETG-CS scaffold serves as the primary structural framework, HAp incorporated enhance bioactivity through its osteoconductive osteoinductive properties. FA was included address potential deficiencies quality stimulate cellular differentiation. were fabricated using precise 3D printing techniques, yielding structures controlled porosity. Physicochemical analyses confirmed successful integration of into matrix. Biological evaluations preosteoblast cell lines demonstrated enhanced viability, proliferation, biocompatibility scaffolds. These findings highlight promising applications PETG-CS-HAp-FA engineering, providing platform future investigations personalized regenerative therapies.

Язык: Английский

Процитировано

0

Effect of Supracrestal Tissue Height on Marginal Bone Level Changes at Platform-Switching Dental Implants Placed Crestally and Subcrestally: A Randomized Clinical-Trial DOI
Büşra Terzioğlu,

Berceste Guler Ayyıldız

Journal of Dentistry, Год журнала: 2024, Номер 148, С. 105219 - 105219

Опубликована: Июль 1, 2024

Язык: Английский

Процитировано

1

The influence of implant depth, abutment height and mucosal phenotype on peri‑implant bone levels: A 2-year clinical trial DOI Creative Commons
Norberto Quispe‐López, Yasmina Guadilla, Cristina Gómez‐Polo

и другие.

Journal of Dentistry, Год журнала: 2024, Номер 148, С. 105264 - 105264

Опубликована: Июль 23, 2024

To evaluate the bone changes around equicrestal and subcrestal implants, analyzing effect of abutment height [short abutments (SA < 2 mm) long (LA > mm)] three components peri‑implant soft-tissue phenotype.

Язык: Английский

Процитировано

1

Evaluation of the Stability of Open-Tray Impression Coping Using Two Different Impression Materials at Three Different Subgingival Implant Placement Depths DOI Open Access

Gayathri P.M,

Kala Sukumaran,

K Harshakumar

и другие.

Cureus, Год журнала: 2024, Номер unknown

Опубликована: Май 26, 2024

Objective To evaluate and compare the stability of open tray impression coping within set while attaching lab analog when polyether (PE) heavy body polyvinyl siloxane (PVS) putty materials were used implant platform was placed sub-gingivally at three different depths. Methods Two materials, PE PVS, custom-made plexiglass models with embedded single implants to simulate positioning depths 0 mm, 2 4 sub-gingivally, in study. Open impressions made after model. Implant attached impression, its measured using a universal testing machine. Forty-two six groups, seven each group. Descriptive statistics such as mean standard deviation calculated. A comparison between two depth done an independent t-test. Comparison subgingival material by one-way ANOVA Scheffe multiple test (post-hoc analysis). The level significance p<0.05. Results force Newtons required for displacement impression. mm gave highest value (4.37+/-0.41), least offered PVS (1.88+/-0.37). When t-test values there statistically significant difference mm. On doing groups PVS. tests analysis) revealed placement both Conclusion accuracy master cast is important determinant precise fit long life final prosthesis. In case maxillary anterior placements where deep needed aesthetic functional reasons, should be selected carefully ensure coping. Among included present study, maximum compared

Язык: Английский

Процитировано

0