Japanese AV actress Rola Takizawa attended the Beijing premiere of the micro-film "Legend of the Heavenly Gods." Dressed in a black dress with exposed shoulder straps, the "otaku goddess" drew attention with a broad smile revealing yellow teeth, a noticeable scar on her left eyebrow, and visible self-harm scars on her arms.
How dirty is our mouth?
It's no exaggeration to say the mouth is the dirtiest place on the human body. Even with morning and evening toothpaste cleaning, bacteria still thrive in this warm, moist environment.Oral bacteria combine with chemical salts in saliva to form pigment deposits, plaque, and tartar. Pigment deposits and plaque adhere to tooth surfaces, affecting aesthetics. Tartar contains numerous small pores similar to activated carbon, which attract massive bacterial accumulation, triggering various oral issues and inflammation.
Why get teeth cleaned?
The primary purpose of professional teeth cleaning is to remove plaque that affects the appearance of tooth surfaces and eliminate tartar that can cause periodontitis, gingivitis, and bad breath. It also prevents incomplete daily cleaning caused by tartar buildup. Only by thoroughly cleaning the mouth can the quantity and rate of bacterial growth be reduced, helping to balance the pH levels within the oral cavity.
Types of Teeth Cleaning Services
1. Manual Scaling
Manual scaling typically requires multiple sessions to fully remove tartar and is a time-consuming process demanding considerable patience. However, it offers a gentler cleaning effect and minimizes the risk of cross-infection-related oral inflammation.
2. Cold Laser Scaling
A bleaching agent is applied to cleaned teeth. Under cold laser catalysis, the highly active oxygen free radicals in the bleaching agent penetrate the tooth surface, binding with and expelling melanin. Simultaneously, the cold laser removes calculus and food debris hidden between teeth, helping balance the cavity's pH level. This prevents bacteria from binding with chemical salts and forming plaque.
3. Ultrasonic Scaling
This method employs ultrasonic waves to dislodge plaque and tartar through high-frequency vibrations. A water spray then rinses the area. Post-cleaning, residual tartar is inspected and polished to smooth microscopic crevices, preventing bacterial adhesion and growth.
Is Teeth Cleaning Safe?
Generally, teeth cleaning is very safe when performed at a qualified dental hospital or clinic. However, thorough oral hygiene before the procedure is essential. Afterward, consistently use desensitizing toothpaste and avoid extremely cold or irritating foods.
Medical Cosmetic Dentistry Methods
While many opt for teeth cleaning, frequent procedures can weaken teeth and offer short-lived results. With rapid advancements in medical aesthetics, numerous safe and efficient cosmetic whitening methods now exist, effortlessly delivering brighter smiles.
As demand for teeth whitening grows, aesthetic dental whitening techniques continue to evolve. What whitening technologies are available this summer? Cold light whitening,皓齿 whitening, and porcelain veneers are currently the most popular scientific whitening methods. Who are these techniques best suited for, and what are their respective advantages and side effects?
Cold Light Teeth Whitening
This technique utilizes high-intensity blue light with wavelengths between 480-520 nanometers. The light is transmitted via fiber optics through two specially coated optical lenses with over 30 layers. Special optical processing filters out all harmful ultraviolet and infrared rays.
Suitable for: Most cases of unknown-cause surface yellowing or darkening; extrinsic staining (tobacco, coffee, cola, etc.); intrinsic discoloration (e.g., tetracycline teeth); fluorosis; congenital uneven tooth coloration.
Treatment Cost: ¥1,500–3,500
Procedure:Teeth cleaning — Pre-treatment photography — Lip protection — Gum protection — Teeth whitening treatment — Post-treatment comparison. During the procedure, whitening agent is applied every 15 minutes for a total of 3 applications, lasting 2 hours.
Side effects: Teeth may feel sensitive for 3–5 days post-treatment, gradually subsiding after 5–7 days.
Precautions: Avoid hot/cold beverages for 24 hours post-treatment. To prevent increased pigment absorption after cold light whitening, refrain from consuming staining foods (e.g., spicy hotpot, betel nut chewing) for one week. Regular dental check-ups and cleanings maintain whitening results.
Haochi Whitening
Utilizes low-temperature nano-light technology, completely eliminating discomfort caused by nerve stimulation during the procedure. The hydrophilic formula and gum-free whitening process cause no damage to teeth or enamel.
Suitable for: Age-related yellowing, extrinsic staining (coffee, soy sauce, tea, etc.);Tetracycline-stained teeth, fluorosis, or other discoloration causes.
Treatment Cost: ¥2000-5000
Process: Teeth cleaning → Shade guide matching → Gum protection → Whitening application → Maintenance session → Before/after photos.Total duration: 1 hour.
Side Effects: Teeth may feel sensitive for 1 day post-treatment, gradually subsiding within 1–3 days.
Precautions: Avoid smoking, tea, coffee, cola, red wine, berry-based beverages, and dark-colored foods for 24 hours after treatment. Additionally, using whitening toothpaste is recommended to minimize post-treatment food staining.
Most importantly, minimize consumption of dark-colored foods in daily life and maintain good oral hygiene by brushing and rinsing morning, noon, and night to keep teeth clean.
Most importantly, minimize consumption of dark-colored foods in daily diet and maintain good oral hygiene by brushing and rinsing morning, noon, and night to keep the mouth clean.Since bacteria cannot survive on the porcelain surface, they not only whiten teeth but also prevent cavities.
Suitable Candidates: Ideal for moderate to severe cases of tetracycline staining, fluorosis, enamel hypoplasia, or teeth with cracks, fractures, or pits, delivering noticeable whitening results.
Procedure Cost: ¥4,000–¥30,000
Treatment Process: Determine number of teeth requiring crowns → Administer anesthesia, prepare teeth → Take impressions, fit temporary crowns → Select crown shade → Crowns fitted after 5–7 days.
Side Effects: Metal allergies may cause sensitivity or swelling around teeth post-procedure.
Precautions: Ideal age range is 20-60 years. Preparation requires thinning existing teeth, posing risks for adolescents with immature permanent teeth and large pulp chambers.For older individuals, factors like gum recession, tooth mobility, overall health, and psychological considerations must be evaluated case-by-case. Patients with severe grinding or clenching habits may also be unsuitable candidates.