Working Time
Mon-Fri | 09:00 AM - 05:00 PM |
Saturday | Some Saturdays |
Sunday | Closed |
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This simply works as a guide and helps you to connect with dentists of your choice. Please confirm the doctor's availability before leaving your premises.
Emergency Case
Emergency dental care may be needed if you have had a blow to the face, lost a filling, or cracked a tooth.
Welcome
to A1 Dental & Associates
When you visit our Houston, TX dental office, your smile is our top priority. Our entire team is dedicated to providing you with the personalized and gentle care that you deserve.
Part of our commitment to serving our patients includes providing information that helps them to make more informed decisions about their oral health needs. This website is a resource we hope you’ll find both useful and interesting.
Contact us today! Todo el equipo habla Español!
Please browse through our website and be sure to give us a call if you have any questions or would like to request an appointment.
Wishing you Health & Happiness.

General Services
General Dentistry
General dentists provide services related to the general maintenance of oral hygiene and tooth health
Cosmetic Dentistry
Cosmetic dentistry is concerned with the appearance of teeth and the enhancement of a person's smile
Dental Implants
When teeth are lost because of disease or an accident, dental implants may be a good option
Why Choose Us?
High Standard of Dentistry
We provide comprehensive treatment planning and follow strict standards that ensure your surgery will go smoothly and provide the results you desire.
Committed Dental Team
Our administrative and clinical team is second to none. They are experienced, highly trained, friendly, and intuitive regarding your needs and will make your visits run effectively.
Modern Equipment
We have a high attention to detail when it comes to our work and invested heavily in their instruments and equipment to give patients the best possible care and treatment.
Patient Testimonials
Kids and I been going there for years and we love it, Doctora Castro is the best... The assistant was a little rough this last time though never seen her before so I guess she's new!!! She needs to get it together because so far all the other assistants are as sweet and caring as the Doctor...
We love this place! I have been a patient for years and now I even take my toddler son there as well. The staff is very friendly and Dr Castro is very attentive to all our needs. I love how patient she is with my son and especially how she makes it such a fun experience for him. Highly recommend! They have a convenient location and they are even open some Saturdays so I don't have to take off work! Great dental office!
This A-1 dental is wonderful! I always get treated quickly and love the Community there , all workers are cordial and make you feel comftarble. Highly Recommended. Glad I go to this A-1 dental
We are very fortunate to have a profesional like Dr. Jeanneth Castro in Houston. I have visited dentists in Colombia, Spain, a place where I visit quite often, and some other cities in the US, and there is no comparison in terms of attention, hospitality, and profesional care. She is extremely supportive. Dr Castro not only helped me with extractions, cleaning and diagnosis but also, she takes care of my oral health and explains every single process on each visit. She has a natural lovely personality. I would recommend Dr. Jeanneth Castro to anyone! She is the best dentist I have ever had. And yes, she loves children.
I've been coming and see Dr.Castro scine I was pregnant with my daughter which is 7 years ago now...she is the best!!!
excellent Dr. I love her because she and her staff take the time to help and teach me. Thankful. Lourdes Waller and family.
Dr. Castro is the best. She's been cleaning my teeth since I was a little girl. She cares about her patients very much. The rest of the staff is also great and do a very good job taking care of me every 6 months. I cannot recommend this office enough.
I am dental-phobic. This is the BEST dental experience I have ever had
I am writing to thank you for solving my recent dental problems. When my dentist retired I was not having any luck in finding a suitable replacement dentist with whom I felt comfortable. Over a period of time, one of my crowns disintegrated and I was very delinquent in taking action to have it replaced. Your took your time to encourage me to visit you and even saw me on a Saturday. I am delighted with the work you carried out, and after a visit to your lovely hygienist Yulli my pearlies are now sparkling again I would be delighted to recommend you to anyone who is looking for a super dentist.
I would like to thank you for your remarkable skills over the past few years in truly giving me a ‘smile to last a century’ ! As you know, my teeth could have been in better shape when you first saw them, but the care, skill and patience with which you have dealt with them has been extraordinary – for which I am sincerely grateful! It goes without saying there is no one I would not
I am so grateful for the opportunity to come to the Loma Linda School of Dentistry. The prices are more than fair and my mouth is already doing much better. Everyone is helpful
My treatment was wonderful. I had no more than a moment of discomfort, and absolutely no pain. It was most reassuring to overhear comments to by the professors about her proficiency. It felt like we were all on a team together and we were victorious.
I am so grateful for the opportunity to come to the Loma Linda School of Dentistry. The prices are more than fair and my mouth is already doing much better. Everyone is helpful
I can highly recommend DentCo Dental Clinic after having implants fitted. Adam put me at ease from the outset explaining in great detail but very clearly the work to be undertaken. It’s a lengthy procedure (about a year) but throughout Adam and his team were informative, caring and very professional. I can honestly say that apart from some slight discomfort the day after fitting, I felt no pain at all.
I'd been avoiding the dentist for years due to bad experiences. Then due to a gum infection I had to make an emergency appointment at Medin Dental Clinic. I have been a patient ever since. My dentist is very reassuring and very helpful.

What Have We Achieved
Patient FAQs
Bad breath (halitosis) can be an unpleasant and embarrassing condition. Many of us may not realize that we have bad breath, but everyone has it from time to time, especially in the morning.
There are various reasons one may have bad breath, but in healthy people, the major reason is due to microbial deposits on the tongue, especially the back of the tongue. Some studies have shown that simply brushing the tongue reduced bad breath by as much as 70 percent.
What may cause bad breath?
- Morning time – Saliva flow almost stops during sleep and its reduced cleansing action allows bacteria to grow, causing bad breath.
- Certain foods – Garlic, onions, etc. Foods containing odor-causing compounds enter the blood stream; they are transferred to the lungs, where they are exhaled.
- Poor oral hygiene habits – Food particles remaining in the mouth promote bacterial growth.
- Periodontal (gum) disease – Colonies of bacteria and food debris residing under inflamed gums.
- Dental cavities and improperly fitted dental appliances – May also contribute to bad breath.
- Dry mouth (Xerostomia) – May be caused by certain medications, salivary gland problems, or continuous mouth breathing.
- Tobacco products – Dry the mouth, causing bad breath.
- Dieting – Certain chemicals called ketones are released in the breath as the body burns fat.
- Dehydration, hunger, and missed meals – Drinking water and chewing food increases saliva flow and washes bacteria away.
- Certain medical conditions and illnesses – Diabetes, liver and kidney problems, chronic sinus infections, bronchitis, and pneumonia are several conditions that may contribute to bad breath.
Keeping a record of what you eat may help identify the cause of bad breath. Also, review your current medications, recent surgeries, or illnesses with your dentist.
What can I do to prevent bad breath?
- Practice good oral hygiene – Brush at least twice a day with an ADA approved fluoride toothpaste and toothbrush. Floss daily to remove food debris and plaque from in between the teeth and under the gumline. Brush or use a tongue scraper to clean the tongue and reach the back areas. Replace your toothbrush every 2 to 3 months. If you wear dentures or removable bridges, clean them thoroughly and place them back in your mouth in the morning.
- See your dentist regularly – Get a check-up and cleaning at least twice a year. If you have or have had periodontal disease, your dentist will recommend more frequent visits.
- Stop smoking/chewing tobacco – Ask your dentist what they recommend to help break the habit.
- Drink water frequently – Water will help keep your mouth moist and wash away bacteria.
- Use mouthwash/rinses – Some over-the-counter products only provide a temporary solution to mask unpleasant mouth odor. Ask your dentist about antiseptic rinses that not only alleviate bad breath, but also kill the germs that cause the problem.
In most cases, your dentist can treat the cause of bad breath. If it is determined that your mouth is healthy, but bad breath is persistent, your dentist may refer you to your physician to determine the cause of the odor and an appropriate treatment plan.
Brushing and flossing help control the plaque and bacteria that cause dental disease.
Plaque is a film of food debris, bacteria, and saliva that sticks to the teeth and gums. The bacteria in plaque convert certain food particles into acids that cause tooth decay. Also, if plaque is not removed, it turns into calculus (tartar). If plaque and calculus are not removed, they begin to destroy the gums and bone, causing periodontal (gum) disease.
Plaque formation and growth is continuous and can only be controlled by regular brushing, flossing, and the use of other dental aids.
Toothbrushing – Brush your teeth at least twice a day (especially before going to bed at night) with an ADA approved soft bristle brush and toothpaste.
- Brush at a 45 degree angle to the gums, gently using a small, circular motion, ensuring that you always feel the bristles on the gums.
- Brush the outer, inner, and biting surfaces of each tooth.
- Use the tip of the brush head to clean the inside front teeth.
- Brush your tongue to remove bacteria and freshen your breath.
Electric toothbrushes are also recommended. They are easy to use and can remove plaque efficiently. Simply place the bristles of the electric brush on your gums and teeth and allow the brush to do its job, several teeth at a time.
Flossing – Daily flossing is the best way to clean between the teeth and under the gumline. Flossing not only helps clean these spaces, it disrupts plaque colonies from building up, preventing damage to the gums, teeth, and bone.
Take 12-16 inches (30-40cm) of dental floss and wrap it around your middle fingers, leaving about 2 inches (5cm) of floss between the hands.
Using your thumbs and forefingers to guide the floss, gently insert the floss between teeth using a sawing motion.
Curve the floss into a “C” shape around each tooth and under the gumline. Gently move the floss up and down, cleaning the side of each tooth.
Floss holders are recommended if you have difficulty using conventional floss.
Rinsing – It is important to rinse your mouth with water after brushing, and also after meals if you are unable to brush. If you are using an over-the-counter product for rinsing, it’s a good idea to consult with your dentist or dental hygienist on its appropriateness for you.
Over the years there has been some concern as to the safety of amalgam (silver) fillings. An amalgam is a blend of copper, silver, tin and zinc, bound by elemental mercury. Dentists have used this blended metal to fill teeth for more than 100 years. The controversy is due to claims that the exposure to the vapor and minute particles from the mercury can cause a variety of health problems.
According to the American Dental Association (ADA), up to 76% of dentists use silver containing mercury to fill teeth. The ADA also states that silver fillings are safe and that studies have failed to find any link between silver containing mercury and any medical disorder.
The general consensus is that amalgam (silver) fillings are safe. Along with the ADA’s position, the Center for Disease Control (CDC), the World Health Organization, the FDA, and others support the use of silver fillings as safe, durable, and cost effective. The U.S. Public Health Service says that the only reason not to use silver fillings is when a patient has an allergy to any component of this type of filling. The ADA has had fewer than 100 reported incidents of an allergy to components of silver fillings, and this is out of countless millions of silver fillings over the decades.
Although studies indicate that there are no measurable health risks to patients who have silver fillings, we do know that mercury is a toxic material when we are exposed at high, unsafe levels. For instance, we have been warned to limit the consumption of certain types of fish that carry high levels of mercury in them. However, with respect to amalgam fillings, the ADA maintains that when the mercury combines with the other components of the filling, it becomes an inactive substance that is safe.
There are numerous options to silver fillings, including composite (tooth-colored), porcelain, and gold fillings. We encourage you to discuss these options with your dentist so you can determine which is the best option for you.
You should have your teeth checked and cleaned at least twice a year, though your dentist or dental hygienist may recommend more frequent visits.
Regular dental exams and cleaning visits are essential in preventing dental problems and maintaining the health of your teeth and gums. At these visits, your teeth are cleaned and checked for cavities. Additionally, there are many other things that are checked and monitored to help detect, prevent, and maintain your dental health. These include:
- Medical history review: Knowing the status of any current medical conditions, new medications, and illnesses, gives us insight to your overall health and also your dental health.
- Examination of diagnostic x-rays (radiographs): Essential for detection of decay, tumors, cysts, and bone loss. X-rays also help determine tooth and root positions.
- Oral cancer screening: Check the face, neck, lips, tongue, throat, tissues, and gums for any signs of oral cancer.
- Gum disease evaluation: Check the gums and bone around the teeth for any signs of periodontal disease.
- Examination of tooth decay: All tooth surfaces will be checked for decay with special dental instruments.
- Examination of existing restorations: Check current fillings, crowns, etc.
- Removal of calculus (tartar): Calculus is hardened plaque that has been left on the tooth for sometime and is now firmly attached to the tooth surface. Calculus forms above and below the gum line, and can only be removed with special dental instruments.
- Removal of plaque: Plaque is a sticky, almost invisible film that forms on the teeth. It is a growing colony of living bacteria, food debris, and saliva. The bacteria produce toxins (poisons) that inflame the gums. This inflammation is the start of periodontal disease!
- Teeth polishing: Removes stain and plaque that is not otherwise removed during toothbrushing and scaling.
- Oral hygiene recommendations: Review and recommend oral hygiene aids as needed (electric dental toothbrushes, special cleaning aids, fluorides, rinses, etc.).
- Review dietary habits: Your eating habits play a very important role in your dental health.
As you can see, a good dental exam and cleaning involves quite a lot more than just checking for cavities and polishing your teeth. We are committed to providing you with the best possible care, and to do so will require regular check-ups and cleanings.
Smile Gallery
Creating a beautiful smile can enhance a persons confidence and overall appearance.
Below are some of the examples that you can be viewed.