Background: Bone resorption due to tooth extraction leads to unpredictable bone volume for future prosthetics. Crab shells were promoted as a solution to prevent bone resorption, along with an effort to reduce biological waste. Purpose: This study aimed to analyze the expression of bone sialoprotein (BSP) and dentine matrix protein-1 (DMP1) in the wound healing process in tooth-extraction sockets after applying a crab shell-derived hydroxyapatite scaffold. Methods: The subjects (28 Cavia cobaya) were divided into control and treatment groups. The control group was left untreated, while the treatment group received a hydroxyapatite scaffold of Portunus pelagicus shell in the tooth socket. The expression of BSP and DMP1 was determined by immunohistochemical staining on days 7 and 14. One-way analysis of variance and Tukey’s honest significance difference test were used to find the groups with the most significant difference. Results: The highest mean expression of BSP and DMP1 was in the day 14 treatment group, while the lowest was in the day 7 control group. Conclusion: Administering hydroxyapatite scaffold derived from the Portunus pelagicus shell to the post-extraction sockets increased the expression of both BSP and DMP1.
A 72-year-old female patient came to Prosthodontics Specialist Universitas Airlangga, Dental Hospital, for an eye prosthesis. The patient lost her right eye because of surgery when she was 10 years old. The eye socket was examined and determined to have minimal contractures and no infection, and the eyelid muscles were still good enough to open and close. A custom-made ocular prosthesis was used to create a working model. It began with an eye print using a customized tray and alginate in the defect area, followed by gypsum type 3 filling of the imprint. The patient's sclera wax model was then made and modified. A redesigned wax model was then used to produce the sclera attempting to draw the iris and pupil after estimating the position and diameter of the iris in the eye socket. The ocular acrylic prosthesis was then polished and color-matched to the contralateral eye. The patient's eye prosthesis was then implanted. The eye prosthesis was evaluated for aesthetics, retention, and stability. The use of eye prostheses, particularly in elders, can boost their confidence and sociality, allowing them to live a better life. Also, in the treatment of anophthalmia, a custom-made eye prosthesis may be explored.
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