Advice needed on dental insurance denial of treatment for not being necessary that my dentist says is necessary.

My insurance is HealthNet Dental, and I’m in California. Denial ​ https://preview.redd.it/dl3ylaqa2mw61.png?width=1657&format=png&auto=webp&s=5c0fe3bf1996e8a58d7f60a4f94abd9092737a13 https://preview.redd.it/yth0m9xb2mw61.png?width=1417&format=png&auto=webp&s=a3b4389292003bde76ff17e46a4b526cc73922da https://preview.redd.it/rz6ytexb2mw61.png?width=1425&format=png&auto=webp&s=b87370e9478f7bdf532729472384cd0874b8f23a https://preview.redd.it/lbf87bxb2mw61.png?width=1377&format=png&auto=webp&s=cae08106079c546926ac1ce3ef23a8a4ed5f76f1 https://preview.redd.it/fm9valxb2mw61.png?width=1373&format=png&auto=webp&s=3a67aded3837bb43873f49e0d46cf1b27a9a020d https://preview.redd.it/rqvl1hxb2mw61.png?width=415&format=png&auto=webp&s=f1ec8a904245acea37985f6d4e9ad1f41c2955a1 ​ ​ X-rays ​ https://preview.redd.it/eiu1uixc2mw61.jpg?width=4025&format=pjpg&auto=webp&s=cbd3d1fb17d7dddee395c45a9cb233ebe3f817ba https://preview.redd.it/vi9zifxc2mw61.jpg?width=3469&format=pjpg&auto=webp&s=9b0288e85d665b84ba38a7948cb1e54cc4d805c1 Pictures taken…

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