I have a small confession to make: in the last two years I have spent £750 on toothbrushes. Please don’t be alarmed. At the time, it seemed perfectly rational. But now, in the cold light of day, I can see how things got a little out of hand.

My poison pen nemesis Barry Scott already think I’m the most frivolous and vacuous person in blogosphere. And when he reads this latest spell of frivolity, he’s going to have a field day.

My addiction to toothbrushes began innocently enough. In November 2011, my sister texted me to say that she’d like an electric toothbrush for Christmas. This might seem strange in itself but if you knew my family, this is the kind of thing we buy each other (see My Parents… and the Christmas Wishlist).

Unable to simply hop on Amazon and click ‘buy’ at the first brush I saw, I immediately set about researching the best electric toothbrush. It’s quite normal for me to spend up to three weeks reading reviews and researching voraciously. At the end of this research spell, I might be finally ready to commit to the purchase – but then spend the week ahead of its delivery racked with anxiety that I might have Bought The Wrong Thing.

In the case of the toothbrush, it was fairly clear from the onset that there was only one contender to the crown of Best Brush In The Business.

Let me introduce you to… Philips Diamond Clean – aka The Daddy of Dentistry.

Beautiful, isn’t it? I’m not quite sure which of its many merits I should mention first: its supreme sonic cleaning action with five different settings from whitening to polishing; the glass it sits in which automatically charges it; or the fact that you can charge it up through your laptop when on the move.

I was so taken with the reviews that I decided to buy myself one as well as my sister.

And then I bought my dad one.

And then – in a moment of extreme madness and possibly because it sprang up in my inbox as part of a £95 flash Amazon sale – I bought my father-in-law one too!

The Husband came home, took one look at the credit card bill, and had to sit me down for ‘a chat’.

It wasn’t normal behaviour, he said, for me to be spending £100 – £150 on toothbrushes for members of his extended family.

The husband likened me to a deranged milky bar kid, handing out over-priced electric toothbrushes to distant aunts like toffees.

He couldn’t stay cross for long though because awaiting him in the bathroom was his own shiny new Diamond Clean toothbrush: a limited edition black bad boy – matt finish and with a sleek black carry case; basically, the Ferrari of the toothbrush world.

Have you ever seen anything quite like it? I haven’t.

After one use, the husband said he couldn’t believe he had ever attempted to brush his teeth with anything else. And while he didn’t exactly endorse spending half of my monthly salary on top-dollar toothbrushes, he grudgingly admitted that he could certainly see its benefits.

As for the father-in-law, I’m not sure whether he even uses his brush. He did look a bit perplexed when he unwrapped his Christmas present last year. When I asked how things were going in the dental department, he muttered something about the brush being too tickly for his teeth. Too tickly?!

Last time I visited the in-laws, I peeked in their bathroom and it was nowhere to be seen. Sometimes I lie awake at night worrying that it’s lying abandoned in a dusty cupboard somewhere and that his teeth will never know what they’re missing.

I went to the dentist the other week. He took a peek in my mouth and, as usual, declared my teeth the best set of pearlies he’d seen in a long time.

I’m strangely proud of the fact that I have reached the ripe old age of 30-something without a single filling, despite my twice-weekly Haribo gorge in petrol stations across Leeds.

I thought I should let the dentist in on the secret, given he’s in the trade and all that.

‘It’s all thanks to the Philips Diamond Clean brush,’ I said. ‘Currently retailing on Amazon for a bargainous £99, RRP £250.’

He looked completely non-plusssed by this news.

I paid my usual £18 fee and trotted off, relishing the fact that I wouldn’t need a check-up again for another year.

The Barry Scotts of this world might scorn my toothbrush splurge.

But when I think of what my teeth could be costing me, £150 seems almost a bargain.