06/08/2024
Class l at lower first molar and lower second molar ( L : 6-7 ) with amalgam restoration at acrylic teeth
In dentistry, amalgam is an alloy of mercury used to fill teeth cavities. It is made by mixing a combination of liquid mercury and particles of solid metals such as silver, copper or tin. The amalgam is mixed by the dentist just before use. It remains soft for a short while after mixing, which facilitates it being snugly packed into the cavity and shaped before it sets hard.
:-
1-Durability: Restorations last for 10-15 years وده مهم جدا اهم حاجه فيه انه قويه جدا وتستحمل لفترات زمنيه طويله اكتر من اى ماده تانيه بتستخدم للحشوات زى المشهوره فى مصر الحشوه التجميليه البيضه ( composite )
2-Lower Cost: The price of amalgam is lower than that of composite
:-
1-Low Aesthetics: Due to its gray color, amalgam fillings are quite noticeable, especially when placed on front teeth وده طبعا الاساسى انه مش بيدى شكل لطيف فأكتر الاوقات بيستخدم للضروس الخلفيه وحاليا قليل جدا حد بيطلبه
2-Thermal Conductivity: Metals heat up from hot foods, leading to increased tooth sensitivity to temperatures
3-Shrinkage During Hardening: The material compresses as it dries, potentially creating voids where secondary infection can develop
4-Expansion Under Heat: Hot foods cause the metals in amalgam to expand, increasing pressure on tooth tissues and gradually leading to their degradation
5-Traumatic Installation: Amalgam does not adhere well to teeth. To ensure a reliable bond, dentists have to remove more tooth tissues, potentially harming healthy areas
6-Mercury Toxicity: Studies show that a large number of amalgam fillings can lead to mercury accumulation in surrounding tissues, potentially causing inflammation, neurological, and cardiovascular diseases
7-Galvanic Syndrome: The reaction between metals in the mouth can cause a metallic taste, burning, other mucosal damage, and dry mouth
8-Risk of Allergies: Copper and mercury in amalgam can sometimes cause allergic reactions
9-Lengthy Installation Process: Complete hardening of amalgam takes 6-8 hours. Additionally, two clinic visits are required – the dentist polishes the restoration the day after filling
Reference ( pros - cons ) from : https://adwcenter.com/blog/composite-vs-amalgam-fillings/ #
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