Tooth Fillings

We are a mercury-free practice. However, many people still have silver/mercury fillings in their mouths from years past. These fillings are not particularly pleasing to the eye, and we know that by unavoidable design, silver/mercury fillings ultimately result in a weaker tooth structure. Porcelain inlays and Tooth Colored Restorations (onlays) create fillings that are not only beautiful (or unnoticeable) but also add strength to weakened teeth. These restorations are esthetically pleasing and very strong thanks to new bonding technologies.

Disadvantages of Silver fillings:

Silver fillings have many drawbacks. The edges of the silver filling can wear down, become weak or break. This results in the tooth not being protected and lets cavities get started once again. With age, the metal of a silver filling expands, contracts, and can split.

Silver fillings contain 50 percent mercury. They can corrode, leak and cause stains on your teeth and gums.

Fortunately, silver fillings can safely be replaced with Tooth-Colored Restorations.

Advantages of Tooth-Colored Restorations

There are many advantages to tooth-colored restorations. Resin onlays are bonded to the teeth creating a tight, superior fit to the natural tooth. Such restorations can be used in instances where much of the tooth structure has been lost. The tooth remains intact and stronger.

Since the resin used in tooth-colored restorations contain fluoride this can help prevent decay. The resin wears like natural teeth and does not require placement at the gum line, which is healthier for your gums!

The result is a beautiful smile!

Replacing Silver Fillings with a Tooth Colored Restoration

You can have your silver fillings replaced with tooth-colored restorations (onlays). This process requires two appointments.

Your First Appointment:

  1. The old filling is removed along with any additional decay.
  2. An impression is made of your teeth. A model of your teeth is made and sent to the lab.
  3. A temporary onlay is placed on the tooth.

At the Lab: A resin is carefully placed into the model of your teeth. It is then designed to look natural.

Your Second Appointment:

  1. The temporary onlay is removed.
  2. A conditioning gel is placed on your tooth to prepare it for the new onlay.
  3. Bonding cement is placed on the tooth and a high intensity light bonds the resin to the tooth.
  4. The tooth is then polished.

Your teeth are restored to a natural look and feel, they are stronger and the tooth is protected!

Related Tooth Filling Links

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Call us: 562-920-1726

Rebecca Irene A. Peña, DMD

5 out of 5 stars based on 19 Dental Fillings reviews

Patient Review by Tamara’e T

Okay I'm not exactly sure where to begin ..I'm going to try to keep it as short as possible and straight to the point. I have very very bad anxiety and I stress myself to the point I can't stop crying and just have a very bad time being relaxed. I think my fear was caused from unpleasant dental visits as a child and throughout adulthood. I've been having a really bad tooth ache for a while. The pain would come and go but it finally got to the point that it was unbearable. I actually felt like the pain was in my left ear. A bit discouraged with finding a dentist during this covid-19 stuff going on I hopped on yelp and proceeded to look for dentist that had experience with treating clients with anxiety. Dr. Pena had very good reviews which prompt me to call. I reached out to Dr.Pena and she was really nice over the phone, she ordered me a prescription to help with pain and set me up for a next day appointment to be seen. Today was my first time visiting Dr.Pena and I can honestly say this was the best experience I've ever had in my life with visiting the dentist. She explained everything to me step by step. She and her assistant ( I don't remember her name we're so nice and attentive and caring) she numbed me very very good. The best numbing I've ever had. I've had experiences of not being numbed enough and feeling terrible pain during procedures. She knows exactly what she's doing and completed my root canal quickly. I felt pretty embarrassed at how bad I was crying during the procedure. I always humiliate myself,lmao and SMH. It's hard to explain but in that moment I actually feel like I'm dying... Thank goodness there weren't any children in the office. This experience has really changed how I feel about visiting the dentist. Even though I cried my heart out, I feel really proud of myself. Well anyways , I have to go back in a month or so to get the root canal completed. I already feel much better and I know what to expect now. I am so grateful to this wonderful professional and nice Dentist. I look forward to taking better care of my teeth and visiting the office in the future. I highly recommend Dr.Pena. P.S the office is clean, there is ample parking as well!

- Tamara’e T

5 out of 5 stars on

Patient Review by Peggy B

Dr. Pena & staff are always very nice & accommodating. She always checks in later in the day to make sure you are doing okay after a procedure.

- Peggy B

5 out of 5 stars on

Patient Review by ASHLEY L



5 out of 5 stars on

Patient Review by R G

Dr. Pena and her staff are friendly and professional. Dr. Pena communicates every step of the procedure before she does anything. Everyone is very easy to work with and flexible.

- R G

5 out of 5 stars on

Patient Review by Justin W


- Justin W

5 out of 5 stars on

Patient Review by DEEANNE R



5 out of 5 stars on

Patient Review by frieda f

Dr. Pena really cares for her clients, I hate going to dentist but Dr. Pena is so gentle and soft spoken she takes away all my fears. I love my dentist. Dr. Pena makes it real easy to schedule and I can come in as early as 7am and she doesn't hurt me AT ALL. Thank you Dr. Pena and staff for your caring and loving attitude towards me and my family.

- frieda f

5 out of 5 stars on

Patient Review by sandra g


- sandra g

5 out of 5 stars on

Patient Review by Marivel R

I have been a patient of Dr. Pena for 10+ years and bring all my family to Dr. Pena. Dr. Pena and her staff are great they are always very friendly and don't have to wait long when I come in.

- Marivel R

5 out of 5 stars on

Patient Review by Michael Z

It was fast and easy. The staff is super nice and caring.

- Michael Z

5 out of 5 stars on

Patient Review by Jan D

Everything was very comfortable and nice !

- Jan D

5 out of 5 stars on

Patient Review by Laura E

Love Dr. Pena and her team. Very nice and efficient. Makes going to the dentist a pleasant experience.

- Laura E

5 out of 5 stars on

Patient Review by Alicia F

Dr. Peña and her staff are phenomenal! From Dr. Peña, I had gone to a prior dentist and was told I needed 2 crowns when all I needed was 2 fillings, she saved my teeth and $ Her staff is awesome as well, from jasmin always being polite and courteous on the phone and in person, to Gail always smiling and caring about you and your family, to Vanessa assisting the Dr and being professional and asking if you are ok while doing the procedure! I am truly blessed for having Dr. Peña and her ENTIRE staff as my dentist! Thank you for being you!

- Alicia F

5 out of 5 stars on

Patient Review by david m

Great dental office

- david m

5 out of 5 stars on

Patient Review by M C

Dr. Peña has always been great at what she does and such pleasant and accommodating staff. Love this place!

- M C

5 out of 5 stars on

Patient Review by Nick M

I went into Dr. Pena with tooth pain following a botched filling my long term dentist had installed barely a month earlier. She quickly went through a diagnostic routine and figured out what the problem was. She recommended we wait until I was back from a trip I had scheduled. When I was back she took my fillings out, dressed them with desensitizing gel to help with the pain, put in a temporary sedative filling to help calm down the tooth. The procedure worked very well. My tooth pain and sensitivity was gone within less than a day. After waiting a week, she installed permanent fillings to finish the procedure. She even assisted me with contacting my insurance to have them help pay for the procedure despite the other dentist already billing my insurance. I'm glad I sought her out for a second opinion. Her office is small and quaint. You definitely get a personal touch that you don't get with typical, assembly line dentist offices that have a dozen or more people waiting to see the dentist for 5 minutes.

- Nick M

5 out of 5 stars on

Patient Review by Jon A

Exceptional work and service. Very clean office and professional staff.

- Jon A

5 out of 5 stars on

Patient Review by Lovie H

Dr. Pena and her staff have been nothing short of amazing since coming to her office 8 years ago. I have never stopped recommending her and her office to my family, friends and co-workers. As a person who was frightened of the dentist she has made every visit wonderful. She and her staff are awesome. I thank God for her gift. If you are looking for an amazing, caring, gentle dentist look no further....Dr. Pena is the best.

- Lovie H

5 out of 5 stars on

Patient Review by Glenn L

Dr. Pena and her staff are the most caring, thorough and talented medical team in the dental field. I have been a patient for a decade or more and every procedure has been done at the highest quality level. Dr. Pena and her team take all the time necessary from consulting to the dental process itself.

- Glenn L

5 out of 5 stars on