Laguna Hills-based Sonendo, a developer of a cleaning system aimed at improving root canals, said today that it has raised $10M in venture debt. The company said the funding came from Oxford Finance LLC. Terms of the debt were not announced. Sonendo said the funding will be used--along with an earlier, $27M raised in an equity funding last summer--to help commercialize its Multisonic Ultracleaning System. Sonendo is led by Bjarne Bergheim, and is backed by OrbiMed Advisors, Themes Investment Partners, Fjord Ventures, NeoMed Management, and Oxford Finance LLC.