Dr. Bichsel studies various conditions affecting oral health and bone structure, especially in patients with head and neck cancer and those needing joint pain management. He explores advanced imaging techniques and treatment methods, such as the use of FDG-PET/CT scans to assess inflammation in cancer patients and the application of specific dental products for conditions like dry socket after tooth extractions. His research also delves into the effectiveness of different guidelines for osteoarthritis treatment to ensure patients receive the best possible care.
Key findings
In a study on head and neck cancer patients, FDG-PET/CT showed additional inflammation information but did not consistently relate to traditional X-ray severity.
Only 35% of clinical guidelines for hip and knee osteoarthritis were found to be of high quality, indicating significant variability in treatment recommendations.
Using Socketol® paste for dry socket significantly reduced pain and improved healing for patients post-tooth extraction.
In a retrospective analysis, 91.4% of teeth treated with apical surgery were healed without complications after one year.
A new collagen matrix approach reduced the risk of ARONJ (a condition that can develop in patients taking specific bone medications) after tooth extractions.
Frequently asked questions
Does Dr. Bichsel study oral health issues in cancer patients?
Yes, he examines conditions affecting oral health in patients with head and neck cancer, including inflammation and saliva composition changes.
What treatments has Dr. Bichsel researched for osteoarthritis?
He has analyzed clinical guidelines for hip and knee osteoarthritis and highlighted inconsistencies, which can impact treatment decisions for patients.
Is Dr. Bichsel's work relevant to patients recovering from tooth extractions?
Absolutely, his research includes effective treatments for complications like dry socket, making recoveries more comfortable.
Has Dr. Bichsel studied bone loss related to dental implants?
Yes, he has researched the use of bone from the zygomatic area to address bone loss in patients needing dental implants.
What is Dr. Bichsel's approach to minimizing dental issues during radiotherapy?
He has evaluated preventive care plans that significantly reduce dental problems in patients undergoing intensity-modulated radiotherapy.
Publications in plain English
Cross-sectional Analysis of Recommendations for the Treatment of Hip and Knee Osteoarthritis in Clinical Guidelines.
2022
Archives of physical medicine and rehabilitation
Bichsel D, Liechti FD, Schlapbach JM, Wertli MM
Plain English This study looked at different guidelines for treating hip and knee osteoarthritis by reviewing 31 published documents. They found that only 35% of the guidelines were of high quality, while 59% were moderate and 6% were low quality. It’s important because consistent and clear recommendations can help doctors provide better care, but this study showed that there is a lot of disagreement and vagueness in treatment options, particularly regarding when to consider surgery.
Who this helps: Patients with hip and knee osteoarthritis.
FDG-PET/CT for oral focus assessment in head and neck cancer patients.
2022
Clinical oral investigations
Schwaninger DR, Hüllner M, Bichsel D, Giacomelli-Hiestand B, Stutzmann NS +3 more
Plain English This study examined how well a type of imaging called FDG-PET/CT can help identify inflammation in the mouths of patients with head and neck cancer compared to standard dental X-rays. Researchers looked at 23 patients and found that while the FDG-PET/CT provided extra information about inflammation, it did not consistently correlate with the severity of the issues seen in traditional X-rays. This matters because it could lead to more accurate treatments for oral health issues in cancer patients based on better identification of inflammation.
Who this helps: Patients with head and neck cancer and their oral care specialists.
[Management of the dry socket with Socketol® paste].
2021
Swiss dental journal
Pejicic R, Bichsel D, Valdec S
Plain English This study looked at treating dry socket, a painful condition that can happen after tooth extractions, affecting around 3% to 30% of patients depending on the complexity of the extraction. Researchers tested a product called Socketol® paste, which is known for its pain-relieving and germ-fighting qualities. They found that using Socketol® in the treatment of dry socket could effectively reduce pain and promote healing, making recovery more comfortable.
Who this helps: Patients recovering from tooth extractions, especially those at high risk for dry socket.
Success rate 1 year after apical surgery: a retrospective analysis.
2020
Oral and maxillofacial surgery
Sutter E, Valdec S, Bichsel D, Wiedemeier D, Rücker M +1 more
Plain English This study looked at the success rates of apical surgery, a procedure to save teeth, by examining 81 patients one year after their treatment. The researchers found that 91.4% of the teeth were healed with no pain or complaints after a year. The type of tooth mattered for surgery success, but other factors like inflammation levels or smoking did not significantly impact the results.
Who this helps: This helps dentists and patients needing tooth preservation treatments.
[Use of a xenogeneic collagen matrix on extraction sockets: a new approach in ARONJ prevention (in german)].
2020
Swiss dental journal
Kuster I, Valdec S, Rücker M, Bichsel D
Plain English This study looked at a new method for preventing a serious jaw condition (called ARONJ) that can occur in patients taking antiresorptive drugs, commonly used for osteoporosis and other bone issues. Researchers found that using a collagen matrix to cover tooth extraction sites can help avoid the need for more invasive surgical techniques while significantly reducing the risk of ARONJ. In the patient case presented, this approach was successfully implemented without exposing the bone further.
Who this helps: This benefits patients undergoing tooth extractions while on antiresorptive medication.
Autogenous bone augmentation from the zygomatic alveolar crest: a volumetric retrospective analysis in the maxilla.
2020
International journal of implant dentistry
Kuster I, Osterwalder L, Valdec S, Stadlinger B, Wagner MEH +2 more
Plain English This study examined the use of bone taken from the zygomatic (cheek) area to fix bone loss in the upper jaw before dental implants are put in. Researchers found that the bone volume increased by an average of 0.54 cm, with some cases seeing up to 0.97 cm of growth, and all patients were able to receive their dental implants afterward. Although there were some complications in three patients, using the zygomatic area for this procedure is advantageous due to its low risk of complications and easy access.
Who this helps: This benefits patients needing dental implants after significant bone loss.
Plain English This paper reviews the treatments available for oral candidiasis, a fungal infection in the mouth that appears as white patches or red spots. It emphasizes the use of antifungal medications for people showing symptoms, as well as for those with weakened immune systems to prevent the infection. Good oral hygiene is highlighted as a crucial part of both treatment and prevention.
Who this helps: This benefits patients with oral candidiasis, particularly those who are immunocompromised.
Müller VJ, Belibasakis GN, Bosshard PP, Wiedemeier DB, Bichsel D +2 more
Plain English This study looked at how radiation therapy affects the saliva of patients with head and neck cancer. Researchers found that during treatment, patients had significantly less saliva flow and lower pH levels, which can increase the risk of tooth decay. After one year, saliva composition returned mostly to normal, but there was a noticeable rise in harmful bacteria, indicating a continued risk for dental problems during and after treatment.
Who this helps: This information benefits patients undergoing head and neck cancer treatment and their dentists.
Evaluation of oral prophylaxis during and after intensity-modulated radiotherapy due to head and neck cancer--a retrospective study.
2016
Clinical oral investigations
Bichsel D, Lanfranchi M, Attin T, Grätz KW, Stadlinger B
Plain English This study looked at how a specific preventive care plan affected patients with head and neck cancer undergoing a type of radiation therapy called intensity-modulated radiotherapy (IMRT). Out of 248 patients, 70 were included, and the results showed that patients who followed the prevention plan closely had fewer dental problems and less dry mouth after treatment. Specifically, those with low compliance had an average of 1.36 dental issues compared to 0.26 for those who were compliant, highlighting that following the care plan can significantly reduce side effects.
Who this helps: This benefits head and neck cancer patients undergoing radiation therapy.
[Radix occulta in antro - 3D-radiographic imaging of a radix relicta in the maxillary sinus].
2015
Swiss dental journal
Bichsel D, Stadlinger B, Damerau G
Plain English This study looked at a situation where pieces of teeth can accidentally get stuck in the maxillary sinus (the space behind the cheekbone) during tooth extractions. The researchers found that using 3D imaging, specifically a method called CBCT, helps to clearly identify these tooth fragments, which can be missed in regular 2D scans. In one case, they successfully removed a tooth fragment from a woman's maxillary sinus using this advanced imaging technique.
Who this helps: This helps patients who may have had teeth removed and could have fragments left in their sinuses.
Deformation of the corona radiata and internal capsule in normal pressure hydrocephalus.
2014
Neuro-Chirurgie
Rogers A, Bichsel D, Momjian S
Plain English This study looked at how the enlargement of brain ventricles affects specific areas of the brain in patients with normal pressure hydrocephalus (NPH), a condition that can cause mobility issues. Researchers found that the front part of the brain's internal capsule shifted more significantly than the back part, while the back part experienced more deformation. These findings highlight how changes in brain structure can contribute to the walking problems seen in NPH patients.
Who this helps: This helps patients with normal pressure hydrocephalus and their doctors by improving understanding of their walking difficulties.
Accuracy of a novel risk index combining degree of stenosis of the carotid artery and plaque surface echogenicity.
2012
Stroke
Momjian-Mayor I, Kuzmanovic I, Momjian S, Bonvin C, Albanese S +5 more
Plain English This study looked at a new method to assess the risk of problems related to narrowing (stenosis) of the carotid artery, which can lead to strokes. Researchers found that patients with symptoms had a higher risk index score (0.46) compared to those without symptoms (0.29), meaning that this new index was better at predicting problems than looking at the narrowing or plaque surface alone. Specifically, an index value over 0.36 was identified as the best way to differentiate between symptomatic and asymptomatic cases, proving this tool could help doctors determine which patients are at greater risk for serious issues.
Who this helps: This helps doctors identify high-risk patients more effectively.
Effect of sodium, amine and stannous fluoride at the same concentration and different pH on in vitro erosion.
2009
Journal of dentistry
Wiegand A, Bichsel D, Magalhães AC, Becker K, Attin T
Plain English This study examined how different types of fluoride (sodium, amine, and stannous) affect tooth enamel erosion in a lab setting. Researchers found that only stannous fluoride and a higher concentration of amine fluoride effectively reduced enamel loss from acidic exposure, with both versions significantly better than other treatments. Specifically, the acidic stannous fluoride and 1% amine fluoride showed the same level of protection, highlighting their potential as superior options for preventing tooth erosion.
Who this helps: This benefits patients concerned about tooth erosion and dentists seeking effective treatment options.
Nonlinear poroplastic model of ventricular dilation in hydrocephalus.
2008
Journal of neurosurgery
Momjian S, Bichsel D
Plain English Researchers explored how ventricles (fluid-filled spaces in the brain) expand in patients with normal-pressure hydrocephalus, a condition where excess brain fluid can cause symptoms without high pressure. By using a new computer model that mimics the brain's mechanical behavior more accurately, they found that this model predicted the shape and size of the ventricle dilation in patients better than older models. Specifically, their model was more precise in representing the enlargement of the front and back parts of the ventricles.
Who this helps: This helps doctors and researchers understand and treat patients with hydrocephalus.