The Canyons Post-Acute: Larvae Found in Resident's Mouth - CA
The man, identified only as Resident 1 in the inspection report, was completely dependent on staff for oral hygiene. He could do none of it himself. That was documented in his clinical assessment from April 17, 2026, the same day his treatment records show a dentist evaluated him and found generalized bone loss and active periodontitis, a bacterial infection that destroys the gums, ligaments, and bone supporting the teeth.
He already had an infected mouth. What happened next made it worse.
A licensed vocational nurse described the discovery in a telephone interview with inspectors on the day of the inspection. The resident's daughter had come to visit and noticed something inside her father's mouth. She reported it to staff. The nurse said it looked like a small white spot moving, resembling white larvae. There was a moderate amount of it. Staff used a prescription antimicrobial rinse and an oral suction tool to remove what was there.
A registered nurse's note from April 27, 2026, two days before inspectors arrived, documented the same event: called to room by charge nurse to assess resident with larvae found inside mouth.
The facility's own policy, titled "Activities of Daily Living Supporting" and dated March 2018, states that residents who cannot carry out daily living activities independently will receive the services necessary to maintain good oral hygiene. When the Assistant Director of Nursing reviewed that policy with inspectors on April 29, she acknowledged it had not been followed.
That was the whole of the accountability on record. A policy existed. It wasn't followed. A man with a serious gum infection and no ability to clean his own teeth ended up with larvae in his mouth, and it was his daughter who noticed something moving.
The inspection cited the facility for failing to ensure proper oral care for Resident 1 and classified the harm level as minimal harm or potential for actual harm. Inspectors noted the failure could worsen his oral health, given that he was already being treated for periodontitis.
The Canyons Post-Acute is a post-acute and rehabilitation facility in Colton. The inspection was triggered by a complaint.
Three residents were sampled during the review. The oral care failure was found in one of them.
What the inspection record does not contain is any explanation of how long the larvae had been there before the daughter's visit, how often oral care had actually been provided in the days before April 27, or what the facility did to ensure it wouldn't happen again. The nurses' note exists. The ADON's acknowledgment exists. The gap between what the policy required and what the resident received is documented.
The man had survived a stroke. He had paralysis on his left side. He had encephalopathy, confusion, altered consciousness. He could not clean his own teeth, could not flag discomfort, could not tell anyone what was happening inside his mouth. He was dependent, in every clinical sense of the word, on the people paid to care for him.
His daughter came to visit and saw something moving.
Full Inspection Report
The details above represent a summary of key findings. View the complete inspection report for The Canyons Post-acute from 2026-04-29 including all violations, facility responses, and corrective action plans.
Download the official CMS inspection PDF from Medicare.gov
Additional Resources
Data source: This article is based on inspection data downloaded directly from the Centers for Medicare & Medicaid Services (CMS) via Medicare.gov. CMS releases inspection reports in bulk; we publish the findings as documented by state surveyors in the official Form CMS-2567 Statement of Deficiencies.
Plan of correction: The CMS report we receive does not include the facility's plan of correction. Facilities submit plans of correction separately to state survey agencies and those responses may not be reflected in CMS data at the time of publication. The absence of a plan of correction in our data does not mean one was not filed. Readers who want information about corrective steps taken are encouraged to contact the facility directly or their state survey agency.
Corrections may have occurred: Inspection reports reflect conditions observed on the date of the survey. Facilities may have implemented corrections, staffing changes, additional training, or other remediation since the report was issued. We report what CMS provides and encourage readers to seek current information from the facility.
Editorial process: Inspection findings are extracted from CMS source documents and synthesized using AI, reviewed for factual accuracy against the original report by our editorial team.
Professional review: All content reviewed by Christopher F. Nesbitt, Sr., NH EMT & BU-trained Paralegal.
Last verified: September 7, 2026 · Our methodology
The Canyons Post-Acute in Colton, CA was cited for violations during a health inspection on April 29, 2026.
The man, identified only as Resident 1 in the inspection report, was completely dependent on staff for oral hygiene.
Health inspections identify deficiencies that facilities must correct. Violations range from minor documentation issues to serious safety concerns. Review the full report below for specific details and facility response.