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return to usual activities immediately."},"complication_rate_pct":{"min":30,"max":70,"unit":"percent","qualifier":"Mostly transient tooth sensitivity or gum irritation; serious complications such as chemical burns are rare."},"contraindications":["Pregnancy or breastfeeding (usually deferred as a precaution)","Active untreated caries, gum disease or exposed dentin/root surfaces","Known allergy to peroxide or whitening gel components","Severe tooth sensitivity or cracked teeth (relative)","Expecting crowns, veneers or fillings to whiten","Young children (generally not advised)"],"days_in_clinic":{"min":0,"max":0,"unit":"nights","qualifier":"Outpatient dental office procedure; no overnight stay."},"diagnostic_duration_minutes":null,"diagnostic_preparation":null,"diagnostic_referral_needed":null,"diagnostic_result_time_hours":null,"exercise_resume_weeks":{"min":0,"max":0,"unit":"weeks","qualifier":"No exercise restriction usually; normal activity can resume the same day."},"final_result_months":{"min":0,"max":0.5,"unit":"months","qualifier":"Shade is visible immediately and settles within a few days; extra sessions or home trays may be needed."},"fly_home_after_days":{"min":0,"max":0,"unit":"days","qualifier":"Non-surgical outpatient procedure; no medical restriction on flying the same day. Sensitivity may be slightly more noticeable in flight."},"follow_up_visits":[{"purpose":"result_review","requirement":"conditional","after":{"min":7,"max":30,"unit":"days","qualifier":"Optional check of shade and sensitivity, often at next routine dental visit."}}],"indications":["Extrinsic staining from coffee, tea, red wine or tobacco","Age-related yellowing or darkening of natural teeth","Mild to moderate intrinsic discoloration","Desire for a lighter natural tooth shade"],"main_risks":["Temporary tooth sensitivity","Gum irritation or chemical burn from whitening gel","Uneven or patchy result, especially with restorations","Relapse or shade fading over time","Limited effect on tetracycline or fluorosis staining"],"pain":"Usually painless to mild; transient sensitivity or zingers may occur during and for 1-2 days after.","preparation":["Dental examination to exclude caries, gum disease and cracks","Professional scaling and polishing to remove plaque and stains","Record baseline shade","Discuss expectations: crowns, veneers and fillings do not change shade","Treat sensitivity and existing dental problems beforehand if needed"],"recovery_timeline":[{"phase":"Day 0-2","description":"Possible temporary sensitivity; teeth are more prone to staining.","restrictions":["Avoid coffee, tea, red wine, dark sauces and tobacco","Avoid very hot or cold foods if sensitive"]},{"phase":"Days 3 onward","description":"Sensitivity resolves and shade stabilises.","restrictions":[]}],"rehabilitation_days":{"min":0,"max":2,"unit":"days","qualifier":"Ordinary functional recovery; any sensitivity usually settles within 1-2 days."},"result_longevity":"Typically around 1-3 years, varying with diet, smoking and oral hygiene; touch-ups may be needed.","revision_rate_pct":{"min":10,"max":30,"unit":"percent","qualifier":"Patients needing an additional whitening session or touch-up within 1 year for insufficient shade or fading."},"scars":"None – this is a non-surgical procedure with no incisions, so no scarring occurs (rare gum irritation from the gel heals within days without scarring).","sessions_or_stages":{"sessions":{"min":1,"max":3,"unit":"visits","qualifier":"In-office bleaching with whitening gel; one visit is common, additional sessions for deeper shade change."},"stages":[{"code":"exam_cleaning_shade","label":"Exam, cleaning and baseline shade","after":{"min":0,"max":0,"unit":"days","qualifier":"At the first visit, before whitening."}},{"code":"whitening_session","label":"Gum protection and whitening gel application","after":{"min":0,"max":0,"unit":"days","qualifier":"Same visit as the first session."}}],"qualifier":"Describes in-office professional whitening; home tray whitening is a separate approach."},"success":{"metric":"Shade improvement after in-office whitening","value":5,"unit":"VITA shade guide units","horizon":"1-2 weeks after treatment","population":"Healthy adults with natural teeth and extrinsic or age-related discoloration","evidence_status":"limited"},"techniques":[{"name":"In-office peroxide whitening (optionally light/laser activated)","suits_whom":"Adults wanting rapid results with healthy teeth and gums.","recovery":"No downtime; possible short-term sensitivity."},{"name":"Dentist-supervised custom tray home whitening","suits_whom":"Patients preferring gradual whitening or lower sensitivity.","recovery":"No downtime; usually 1-2 weeks of nightly or daily wear."},{"name":"Internal bleaching of a non-vital tooth","suits_whom":"Single discolored root-treated tooth.","recovery":"No downtime; may need repeat applications."}],"treatment_conditions":["outpatient"],"treatment_duration_hours":{"min":0.75,"max":1.5,"unit":"hours","qualifier":"One in-office whitening session for the full upper and lower visible teeth, including gum protection and gel application."},"initial_assessment_documents":["Front photos of smile showing teeth and gums","Close-up photos of teeth in natural light","Panoramic dental X-ray (OPG) (if available)","Previous dental treatment records (if available)","Note on tooth sensitivity and gum disease history"],"travel_trips":{"min":1,"max":1,"one_trip_possible":true,"qualifier":"In-office whitening is completed in one visit, or 2-3 visits within a few days; stay 1-3 days."}}},"hrefLanguages":[{"rel":"alternate","hreflang":"ru","language":"ru","href":"https://ru.bookimed.com/clinics/country=kitaj/city=hanchzhou/procedure=otbelivanie-zubov/"}],"offerFilters":{"offer_count":0,"city_filter":[{"id":2694,"name":"Wuhan","alias":"wuhan","country_iso_code":"CN"}],"price_filter":{"from":0,"to":0,"avg":0}},"rendersOffersList":false}