bad breath, Dentistry FAQ

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Understanding Dental Implants: Are They Overextending Bone Structure?

Issues related to dental implants? Hello, Doctor. The image linked shows my dental X-ray. I would like to ask about the upper left maxillary implant: 1. From the image, does it appear that the implant extends beyond my bone structure? 2. If it does extend beyond, is this normal? ...


Dr. Lin Jiayong Reply:
Hello: This platform cannot provide medical diagnoses. If you continue to experience symptoms such as yellow nasal discharge, post-nasal drip, and persistent bad breath, it is recommended that you consult with an oral and maxillofacial surgeon at a medical center.

[Read More] Understanding Dental Implants: Are They Overextending Bone Structure?


Persistent Bad Breath: When It's Not Just Oral Hygiene Issues

There is bad breath, but it doesn't seem to be an oral issue? Hello, Doctor: I have had a problem with bad breath since my student days. In recent years, I have been very diligent about dental hygiene due to treatment for periodontal disease, and I have received recognition ...


Dr. Lin Jiayong Reply:
Hello: If you have been taking medications for chronic conditions for a long time, it is advisable to take out the medication leaflet and read it carefully, as many medications can cause taste abnormalities or lead to unusual odors as side effects. Additionally, you may consider ...

[Read More] Persistent Bad Breath: When It's Not Just Oral Hygiene Issues


Persistent Bad Breath from Gaps Between Teeth: Causes and Solutions

Bad odor from between the teeth? I went to two dental clinics for a cleaning and check-up because of bad odor coming from my teeth gaps. The doctors examined my teeth and said they were in good condition. Despite brushing normally and using dental floss, the odor from the gaps pe...


Dr. Zeng Guanghui Reply:
Hello Ms. Tsai: In addition to oral hygiene issues, if there is an unpleasant odor in the mouth, it may be necessary to consider whether there are abnormal secretions from the nasopharynx or gastrointestinal tract, such as gastroesophageal reflux, which can create an acidic envir...

[Read More] Persistent Bad Breath from Gaps Between Teeth: Causes and Solutions


Managing Oral Ulcers and Bad Breath: When to Seek Dental Care

Ulcer, halitosis? On April 28, I had a mouth ulcer and visited an ENT specialist three times, with the last appointment on May 8. After finishing the medication, I felt that the ulcer was healing, so I stopped going for follow-ups. Now, the largest ulcer is no longer painful, but...


Dr. Zeng Guanghui Reply:
1. If the sore in the mouth is no longer very painful and has a yellowish coating, it indicates that the wound is gradually healing. As long as oral hygiene is maintained, it should heal slowly. 2. If there is a persistent problem with bad breath, it may indicate gingival inflamm...

[Read More] Managing Oral Ulcers and Bad Breath: When to Seek Dental Care


Managing Oral Ulcers and Bad Breath: When to Seek Dental Care

Ulcers, halitosis? On April 28, I had a mouth ulcer and visited an ENT specialist three times, with the last appointment on May 8. After finishing the medication, I felt that the ulcer was healing, so I didn't go for further consultations. Now, the largest ulcer is no longer...


Dr. Zeng Guanghui Reply:
If mouth sores persist for more than two weeks without complete healing, it is advisable to consult a dentist or an otolaryngologist for further evaluation. Dr. Tseng Guang-Hui, Department of Dentistry, Nantou Hospital.

[Read More] Managing Oral Ulcers and Bad Breath: When to Seek Dental Care


Understanding Bad Breath and Oral Health Issues: Causes and Solutions

Halitosis, oral health issues? Every time I finish drinking a beverage, my tongue has a very sweet taste, and there is a layer of yellow coating on it. I can only remove the taste and color by continuously brushing my tongue while brushing my teeth, but most of it still remains. ...


Dr. Lin Jiayong Reply:
Hello: The issue of glossitis is largely related to systemic immunity. If this condition has been troubling you for a long time, it is advisable to visit a larger medical center and seek evaluation from the Department of Oral Diagnosis or the Department of Oral Pathology to deter...

[Read More] Understanding Bad Breath and Oral Health Issues: Causes and Solutions


Understanding Bad Odor Between Teeth: Causes and Solutions

Bad odor between teeth? On May 25th, I visited the dentist because I had a cavity in the upper right third molar, which was causing discomfort as food would get stuck and touch the gums while eating. The dentist diagnosed me with a cavity in the third molar and performed a fillin...


Dr. Zeng Guanghui Reply:
If cavities have been filled, and proper dental flossing and mouthwash are being used, but there is still bad breath, it is important to consider other potential issues beyond the oral cavity, such as post-nasal drip or gastroesophageal reflux disease (GERD) and other digestive s...

[Read More] Understanding Bad Odor Between Teeth: Causes and Solutions


Can Flap Surgery Cure Bad Breath from Periodontal Disease?

Halitosis due to periodontal disease? I have been troubled by this issue for a long time. I brush my teeth three times a day with an electric toothbrush, use dental floss, clean my tongue, and use mouthwash, but there has been no improvement. My family dentist said it is due to b...


Dr. Zeng Guanghui Reply:
If periodontal disease is severe and has resulted in a significant loss of alveolar bone, it is recommended to undergo flap surgery, and subsequent prognosis will require further evaluation by a dentist. Dr. Tseng Guang-Hui, Department of Dentistry, Nantou Hospital.

[Read More] Can Flap Surgery Cure Bad Breath from Periodontal Disease?


Understanding Oral Health: Mouthwash, Tongue Coating, Bad Breath, and Dry Mouth

Mouthwash, tongue coating, bad breath, dry mouth? Hello, Director: 1. I have been using alcohol-free antibacterial mouthwash by Li X De Lin, and the next morning after use, I notice a white film on my teeth. Previously, I read that you mentioned this could be due to inadequate ...


Dr. Zeng Guanghui Reply:
Hello, students: 1. If you have been using mouthwash long-term and maintaining thorough oral hygiene, yet still have a coated tongue, you should consider the possibility of an oral candidiasis infection. It is advisable to consult a dentist for further examination. 2. If you ...

[Read More] Understanding Oral Health: Mouthwash, Tongue Coating, Bad Breath, and Dry Mouth


Post-Wisdom Tooth Extraction: Pain, Stitches, and Bad Breath Concerns

Post-operative issues after wisdom tooth extraction? Hello, I had my lower right wisdom tooth extracted 10 days ago and I still have stitches. Yesterday, the extraction site suddenly became very painful, radiating pain to my throat and ear. Today, the stitches on the side came ou...


Dr. Zeng Guanghui Reply:
Hello, 1. There may be bacteria or food residue in the wound causing infection, leading to inflammation and pain. It is recommended to return for a check-up immediately. 2. Try to keep your mouth clean; consider using mouthwash to help disinfect and kill bacteria, but it is still...

[Read More] Post-Wisdom Tooth Extraction: Pain, Stitches, and Bad Breath Concerns


Understanding Periodontal Disease Treatment Options and Concerns

Periodontal disease treatment I'm sorry to ask, but I would like to inquire about my situation. Previously, I had significant swelling in my lower gums, which led me to see a dentist. The doctor performed a gingival scaling procedure on my lower gums in early May. However, n...


Dr. Huang Tingfang Reply:
Dear Ms. Chen, Hello! Based on what you mentioned, the periodontal disease appears to be moderate to severe. A periodontal flap surgery is necessary, and the use of laser treatment will depend on the physician's preference. It is recommended to consult a periodontist for ma...

[Read More] Understanding Periodontal Disease Treatment Options and Concerns


What Could This White Spot in My Mouth Indicate?

Hello, doctor. Could you please tell me what this white spot is? Hello, doctor. Could you please tell me what the white spot circled in green might be? I have a history of allergic rhinitis and post-nasal drip (I experience post-nasal drip daily), which has led to persistent bad ...


Dr. Zeng Guanghui Reply:
Please consult a dentist for further examination.

[Read More] What Could This White Spot in My Mouth Indicate?


Understanding Foul Breath: Causes and Solutions for Dental Issues

Foul-smelling blood in the mouth? Hello Doctor, I have a question. Sometimes when I go without eating or drinking for a while, I notice that my mouth is either closed or open while breathing, and there is a certain odor, sometimes with a fishy smell. I initially thought it might ...


Dr. Zhu Guanyu Reply:
Hello, The sources of oral malodor primarily originate from the oral cavity, followed by the nasal cavity and gastrointestinal tract. It is recommended that you visit a dental clinic or hospital dental department for further examination. Thank you for your message! Wishing you ...

[Read More] Understanding Foul Breath: Causes and Solutions for Dental Issues


Does Bad Taste in Saliva Indicate Bad Breath from the Tongue?

Is there a correlation between foul-smelling saliva at the base of the tongue and bad breath? Hello Doctor: Thank you for your response on November 2nd! May I ask you again: 1. If the saliva at the base of the tongue has a foul odor, will the breath (when speaking) also have an u...


Dr. Zeng Guanghui Reply:
1. If the saliva at the base of the tongue has an unpleasant odor, the breath will also have an unpleasant smell. 2. If food debris or dental plaque accumulates on the tongue coating, it can easily produce an odor. A tongue scraper, soft-bristled toothbrush, or a moist cotton swa...

[Read More] Does Bad Taste in Saliva Indicate Bad Breath from the Tongue?


Understanding Bad Breath: Causes and Solutions for Tongue Root Saliva Odor

Taste of saliva at the base of the tongue? Hello Doctor: I feel like I might have bad breath. I tested it and found that the saliva from the tip of my tongue and under my tongue is tasteless, but the saliva scraped from the back of my tongue (near the throat) has a foul, rotten s...


Dr. Zeng Guanghui Reply:
In the above situation, it is likely that bacteria are adhering to the base of the tongue, utilizing food debris from oral intake to produce sulfur compounds, which can cause bad breath. It is recommended to maintain good oral hygiene and to have regular check-ups to assess for p...

[Read More] Understanding Bad Breath: Causes and Solutions for Tongue Root Saliva Odor


Common Concerns After Wisdom Tooth Extraction: Pain, Healing, and Hygiene

Many questions after wisdom tooth extraction? Hello, doctor. It has been five days since I had my wisdom teeth extracted. 1. I am still experiencing a dull pain. Could this be due to damage to my inferior alveolar nerve during the extraction process? 2. In addition to the dull...


Dr. Lin Jiayong Reply:
Hello: 1. When there is nerve injury, it usually presents with numbness rather than a dull ache. However, individual sensitivity may vary. It is recommended to increase your intake of vitamin B and to relax and rest. 2. The main cause of discomfort in the anterior teeth is likely...

[Read More] Common Concerns After Wisdom Tooth Extraction: Pain, Healing, and Hygiene


Dealing with Cavities and Gum Cysts: Dental Care Insights

Gingival cysts and severe dental caries issues? Hello, doctor. I have worn braces and have been diligent about brushing my teeth, but I have had cavities since childhood. I have had fillings, and even had root canals, but I am very afraid of going to the dentist. After my braces ...


Dr. Zeng Guanghui Reply:
Cavities must be treated promptly; shallow cavities can be filled immediately, while deeper cavities may require root canal treatment. If cavities are left untreated, bacteria can continue to spread down to the root apex, leading to the formation of abscesses. Additionally, cavit...

[Read More] Dealing with Cavities and Gum Cysts: Dental Care Insights


Understanding Bad Breath and Tooth Staining: Causes and Solutions

Halitosis and dental pigmentation? Hello, doctor. I would like to ask about a situation where I previously did not have any pigmentation on my teeth, but recently I have started to notice dark deposits appearing on my teeth that are difficult to remove. After a dental cleaning, t...


Dr. Zeng Guanghui Reply:
The above situation may be due to staining of the teeth caused by food and beverages such as tea and coffee. Halitosis can result from the accumulation of dental plaque or calculus, where bacteria in the oral cavity utilize the components of dental plaque to produce sulfur compou...

[Read More] Understanding Bad Breath and Tooth Staining: Causes and Solutions


Post-Wisdom Tooth Extraction: Dealing with Bad Breath and Ear Pain

Extraction of the lower left wisdom tooth? Doctor, I had my lower left wisdom tooth extracted on November 30th. Two days later, I noticed a foul odor when swallowing saliva. I bought mouthwash, but it still smells bad. I observed that the edges of the wound appear white, and I ha...


Dr. Zhang Xiangyuan Reply:
Dear user, Based on your description, after having your lower left wisdom tooth extracted, you noticed an unpleasant odor in your mouth. A few days later, you experienced pain in both ears and swelling and warmth in your cheeks. It is advisable for you to return for a follow-up...

[Read More] Post-Wisdom Tooth Extraction: Dealing with Bad Breath and Ear Pain


Will Filling Cavities Eliminate Bad Breath?

Issues Related to Dental Fillings After Cavities I recently went to the dentist and found out that I have multiple cavities. The doctor filled them for me. Before getting the fillings, my family often mentioned that I had bad breath. I would like to know if my breath will still s...


Dr. Qiu Qiongyao Reply:
Hello, sometimes bad breath is not caused by cavities; it may be related to internal issues and is likely not significantly associated with dental caries.

[Read More] Will Filling Cavities Eliminate Bad Breath?


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